Berlin Germany

I am currently living in Warsaw, Poland and I have plans to move to Berlin, Germany. I just wanted to know if there were any expats out there that are in Berlin or have visited Berlin. What type of city is Berlin? What was your experience while you were there? I hoping to move there so I can work in the arts. I love a city that is filled with culture, art, and history. How is the nightlife there? And are the people friendly? Please send me a message about this.

Thanks.

T