The room was comfortable, and pretty newly renovated. The location is in a quiet courtyard, set back from the busy road.
But, don't go if you are from the UK. The power points in our room won't accept UK plugs with adapters. These are the same adapters I have used in other German hotels. We tried five different adapters. There's a problem with the sockets.
I mentioned this to the manager, and his response was "This is a German hotel, and as long as German people's appliances work, that is all that matters."
There's a clear implication here for Brits. Don't come.
I also mentioned that our room hadn't been cleaned, and he simply shrugged and said that they didn't have a cleaner every day.
On arrival, we needed some help, so rang the number given (as there's nobody on site), but there was no answer, no answering machine even, and nobody rang back.
I said to the manager that we weren't complaining, as this was at the end of our stay, but thought it would be helpful to give him some feedback. He responded that he would give me feedback, and basically told me to get lost. Really, Basil Fawlty is alive and well, and living in Berlin.
Such a shame, really, that it could be a good hotel, but it's so terribly, terribly badly run