What our customers report
Our customers' feedback matters to us and helps us keep improving our products and services. Read here what tenants have experienced with CONNY: with rent control (Mietpreisbremse), rent increases, cosmetic repairs, deposits and terminations. Independently tested: the results from Stiftung Warentest and Finanztip.
Customer stories by service
Enforcing rent control
Max, Sebastian and Alexander were glad to have found the right shared flat. But when they signed the contract, they were handed a dubious modernisation agreement that raised the rent by €600. Read here how they fought back. Andreas enforced his right to a fair rent under rent control and now saves €120 a month. Andreas asked CONNY to enforce rent control for him and now saves €410 a month. Caleb saves €115 a month after a rent reduction under rent control. Diego had his rent checked by CONNY right after moving in. It paid off. E.K. reduced her rent with CONNY under rent control. Her verdict: "Everyone should fight back against extortionate rents. If you don't do it for yourself, at least do it for the tenants who come after you. There is no risk either: you pay nothing if it doesn't succeed in the end." Erik was fed up with paying too much rent. A friend told him about CONNY, and he decided to have his rent reduced. The result: his rent was cut by €108 a month – with no dispute with his landlord and no cost risk for him. Helena asked CONNY to enforce rent control and now saves €116 a month on rent. Her motto: "I'm stopping the rent madness" – at least in her own flat. Julia asked CONNY to enforce rent control straight after the Berlin rent cap (Mietendeckel) was overturned. She hopes to pay a much lower rent again. With CONNY, Kamilla saves €576 a month on rent thanks to rent control. Her extortionate rent was almost halved. Katharina could barely afford her home district of Kreuzberg any more. With CONNY she successfully enforced rent control and reduced her rent by €233 a month. The four-person shared flat Lara lives in felt from the start that they were paying too much rent. During the coronavirus period they were suddenly short of money and decided to have their rent reduced. The result: a record-breaking saving of €694 a month.
Lars saves €214 a month thanks to CONNY and rent control. Lilli enforced her right to a fair rent under rent control and now pays €150 a month less. Rent control works not only in Berlin but in Hamburg too. Maha enforced rent control with CONNY and saves €704 a month on rent. On top of that, her landlord had to refund around €11,000 in overpaid rent. Mario, too, reduced his rent by €120 a month by enforcing rent control with CONNY. He wasn't afraid of his landlord: the rent reduction is his legal right. Richard wasn't sure whether to reduce his rent, for fear of straining the relationship with his landlord. After a phone call with CONNY he was convinced – and had his rent reduced under rent control. Sara's landlord was charging far more rent than the law allows. With CONNY she now pays €346 less a month. In her view, her landlord's behaviour was almost criminal: "Look at it that way and my landlord stole €346 from me every month – and I didn't even notice." Silvia's first attempt to reduce her rent, with the help of the tenants' association, got nowhere. Her second attempt went better: she reduced her rent by €140.
Tamás saves €190 a month on rent after enforcing rent control with CONNY. His landlord accepted the reduced rent within one week. Timothy was not familiar with the German legal system. With CONNY he still managed to reduce his rent by 20 %. His conclusion: "In the end, the law is on your side." Tom heard about CONNY and rent control from his flatmate's brother. A rent check showed they were paying far too much. Tom is now planning a big holiday with the rent he saves. Volodymyr reduced his rent by a third with the help of rent control. His advice: the sooner you enforce it, the more money you save.
Three-person shared flat from Berlin-Neukölln
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Andreas from Berlin-Mariendorf
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Andreas from Berlin-Neukölln
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Caleb from Berlin
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Diego from Berlin
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E.K. from Berlin
Erik from Berlin
Helena from Berlin-Kreuzberg
Julia from Berlin-Friedrichshain
Read her story here 
Kamilla from Berlin-Neukölln
Katharina from Berlin-Kreuzberg
Lara from Berlin-Neukölln
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Lars from Berlin-Treptow
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Lilli from Hamburg-Barmbek
Maha from Berlin-Kreuzberg
Mario from Berlin-Lichtenberg
Richard from Berlin-Wedding
Sara from Berlin-Schöneberg
Silvia from Berlin-Prenzlauer Berg
Read her story here 
Tamás from Berlin-Moabit
Timothy from Berlin
Tom from Berlin-Charlottenburg
Volodymyr from Berlin
Read his story here
Are you paying too much rent as well? CONNY checks your rent for free and enforces rent control for you.
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Fighting off rent increases
Bernhard fights off a rent increase
Bernhard's flat got a new owner. Since then, rent increases have been arriving regularly. He would not have been able to afford his flat on his pension for much longer. So he decided to fight back – with CONNY the rent increase was fended off, good news for the pensioner.
Emmy from Berlin
Emmy fought her rent increase with CONNY. Her advice: "It's worth having a rent increase checked by professionals. Landlords often use tricks, apply pressure or threaten court proceedings. With CONNY I saved a lot of time, hassle and money."
Florian from Hamburg
Florian from Hamburg fought off a rent increase of €105.94 a month with CONNY and now saves over €100 every month.
Jens from Arnsdorf
Jens received two rent increases at once: one for his flat, one for his carport. With CONNY he fought off both. His tip: stay calm when a rent increase arrives and first have it checked whether it is permissible at all.
Petra from Berlin-Steglitz
Petra fought off her rent increase with CONNY and still pays her previous rent.
Sabine from Düsseldorf
With CONNY's help, Sabine got her rent increase down from over €34 to €3.82.
Read her story here
Silke from Berlin-Wilmersdorf
Silke's landlord had demanded an unlawful rent increase. With CONNY's help she successfully fought it off.
Received a rent increase? CONNY checks whether it is permissible and fights off unjustified demands for you.
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Other tenancy law services
Olga was told to renovate after moving out. With CONNY's help she fought off the cosmetic repairs and got her full deposit back without renovating. Ms Schulte's landlord terminated her tenancy for personal use – for his mother. With CONNY's help she fought off the personal-use termination and can stay in her flat. Isabell had mould in her flat and secured €2,250 in compensation for the past months.
Olga from Stuttgart
Ms Schulte from Schneverdingen
Isabell from Berlin
Read her story here
Is your landlord demanding cosmetic repairs or has he terminated your tenancy? CONNY checks your case for free.
Check your rent for free
Check your rent for free
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