Good building that's only a couple years old. It's modern, has new appliances, washer/dryer in unit, small gym on one of the floors, responsive management.
The commute to University City is a little long, but there's always room on the bus since I get on so far up Walnut. There's also almost always at least one cab leaving from the building every morning, so taxi "carpooling" is pretty convenient, with a taxi stand right around the corner.
While new, the appliances and building seem a little bit cheap (e.g., thin walls, electric stove top, flimsy outlets, etc.) But it's reasonably priced for how spacious and new it is.
Not many complaints here...

Fantastic location in center city, if you don't mind the walk to campus. Easy to take the bus because bus gets more crowded as you move towards the streets in the 20s. Not really great "value," but in my opinion is an excellent price for the quality. Management is very responsive and front desk people are really nice and helpful. Not the best that I have seen for amenities and social, but I don't consider that a drawback. I definitely would not want to live anywhere else.

The Sansom offers high quality units in a great location, but you pay for it. Staff is incredibly friendly. Amenities are minimal (doormen, small gym, no group study rooms). Great, low risk option, but you can likely find better value elsewhere with more time/research into your housing search.

Cannot ask for better amenities and space...but it comes with a cost.

This is a great new building in the heart of Centery City. I have really enjoyed living here. The front desk staff is very helpful, maintenance has been pretty responsive and the property owners are friendly. The property just opened in July 2013 so all of the appliances are new. I love having the washer and dryer in the apartment, the gym down the hall, and having someone to sign for packages.

The building is new, my residence was never used before. Everything works perfectly; maintenance is good and staff are great and friendly. The only downside to the apartments facing Ionic Street (the back alley) is the noise from trashdelivery trucks. Walls are very thin and can sometimes hear neighbors. The amenities are new and very well taken care of. The gym is nice, TV/wifi lounge is nice, has a small outdoor patio.

Brand new. Great building, great location. Mostly grad students.

The gym and outdoor patio are much smaller than other high rise buildings.

New building, well located, good floorprint.

Best location in Philly. Brand new building. 1 bedrooms are really spacious. Studios are relatively big. Small gym. Common area really small. No problem with management.