We went once and I think this is a fair assessment. PS612 is a good solid option for an after-work meet-up place. It's part of the Daily Grill, and I found it to be similar in that the atmosphere is pleasant and the food decent - but the overall experience is unextraordinary.
Both. They've created it in the part of the space that is on 6th (can't remember what it was before - just more restaurant seating, I think?). The two halves of the space feel quite separate, but it's still one space.