my mom's russian but has been living in the midwest for 25 years. she's visiting me in NY and I want to take her to a russian restaurant (I don't usually frequent them) that'll blow her away. Not looking for a place of the super-authentic-but-sloppy Brighton Beach variety, but more upscale and creative (not to say that can't be authentic). Last time she was here we went to Firebird, and she was somewhat dissapointed. Thoughts?