Bought a Luch watch from GUM in late November 2013 during a trip from the United States. Thought I was getting something special. The damn battery died after two months. Two months!! Should have lasted at least two years. I am pissed!! And, of course, since I'm on the other side of the planet now I can't do much about it. On the whole, it was a large, ok store. The coolest thing about it is that the staff wear uniforms.....sort of a throwback.
I was disappointed. Kind of grubby / shabby to be honest. It still has a sort of faded 'Soviet chic' look about it which might appeal to some!
The most famous shops in the Eastern Bloc! Check out GUM in Moscow too - the Harrods of the East!