Soviet union planned cities are mostly awful. They mandate helluva lot of open space between high-rises which doesn't get any care. It also creates corridors for fierce cold winds to blow. Most of buildings don't have space for commerce making area either as dead as suburbia or blistered with shackles selling stuff. Transit stops are far between and you have to get there thru ice and hail. Roads are few and congested while still getting in your way.

http://pora-valit.livejournal.com/4740340.html it mostly looks like this

It was fine up until the 50-s and then worse and worse with each year (even now)