Best Luxury Apartments in Stamford?

A reader needs your advice:
She and her boyfriend, both in their early 30’s, are moving to Stamford. They’d like to rent in a luxury apartment building (you know, nice place with gym, parking, laundry, etc.) that’s close to the train or offers shuttle service.
They’d also like their building to be somewhat social so they can meet people. Should she go for one of the Avalons- if so, which one- or does she have other options? If any of you have any advice for her, please dish!