I also had a GSG-1911 and it was a fun to shoot and really accurate & reliable. In a way, I kind of wish I didn't sell mine since I had mine setup just how I wanted it, but I grew bored of it and like shooting .45 1911's more.
But for practice and wanting to plink with, it's a great gun. Even worked great with 36 gr CCI MiniMag rounds on .5" steel plates at a rimfire steel match I used it in.