Anyone living in Avalon on Harrison building? need opinions

I'm currently not in Princeton so can't look for myself, but Avalon on Harrison is currently one of my top picks based on location and new-ness of construction

But it's been years since I've actually lived in an apartment, so I have all sorts of doubts. What's the quality of construction like, how is the building for tenants currently, how thin are the walls? any other concerns?

Also one unit I like is next to the stairwell, is getting an apartment next to a stairwell a bad idea for noise?