We went to do some tourism in Berlin with some friends.
Everything was fine with Lana and answered us all times when we needed something.
It's an easy way to access to the place. It's what it's promised. I think the location is fine because in berlin you have metro to everywhere and you can get to the center in 20 min approx.
My recommendation is putting some extra "services" would be ever nicer but overall it was good for us.