Everything I heard bad things about was second hand information from developers, notaries, lawyers and agents which is why I wanted to see if a client would confirm the reports from their side. As it was second hand information and didn't involve me personally I'm not going to broadcast what is potentially misleading information regarding a company and name them. Especially as they are reported to having very capable libel lawyers
It may well be that the Berlin office of the company is trying hard to be independent from the group and behave in a more reputable fashion than their other offices around the world.
Having said that, this particular company which is based in Spain has videos of salespeople on Youtube blatantly lying to clients and is quite infamous among investors worldwide with their name coming up normally related to aftersales problems, as can be seen when you "google" the company name. They are on almost every real estate forum I've seen with reports of dodgy activity.
If you are working with a real estate agency in Berlin which is British owned or operated and you are concerned it might be them, just "google" their name or do a search on Youtube and get some background information about them.