We've been traveling with our startup for about 4 years. Berlin is by far the best city of all the ones we've visited, though Amsterdam is very close in terms of being a nice place to live.
Living on the eastern side of the wall, rents are cheap.
The main thing that keeps us from relocating there more permanently is the immigration issue, but it looks like this may be resolved, at least partially.
One thing though, you probably do want to learn German. While many germans speak english (even more so in the startup scene) a lot of germans don't, and day to day life involves a fair bit of basic german.
Living on the eastern side of the wall, rents are cheap.
The main thing that keeps us from relocating there more permanently is the immigration issue, but it looks like this may be resolved, at least partially.
One thing though, you probably do want to learn German. While many germans speak english (even more so in the startup scene) a lot of germans don't, and day to day life involves a fair bit of basic german.
But, certainly worth the effort!