Free lancing as a Ruby guy

I’m in London right now and two guys i know moved to Berlin cause they can make a lot of money there as free lance ruby programmers and living there is much cheaper. i don’t know these guys too well to tell if they weren’t exaggerating so my question: does anyone know the berlin scene well? Does it make sense to go there? And of course is the city nice?
I’m 21 and finishing school in a couple of months.