I registered, but didn't stick around. And I heard seasons are longer.
I also recently registered to basketsim. Doesn't seem bad, but BuzzerBeater is better :) It seems to have solid gameplay, but the interface is awful.
One more basketball manager I tried was doubledunk. It looked ambitious, had some cool features, but the developer quit, and the game is dead..
If someone is interested in soccer managers. I played two:
Trophy Manager - cool.
Hattrick - I didn't like it much.