The good:
The apartments are clean - no bugs or other pests.
Wonderful, friendly front desk staff.
Shuttle to Penn.
Cat-friendly.

The bad:
Not so friendly management staff. Dismissive. Might ignore your emails. Also, management needs to be more transparent (last year, there were recurring fires - approx 7 times - in the trash room and tenants received no explanation).
Apartments were recently renovated but seem to have been poorly done - doorknobs on closets falling off, crystal deco on the overhead lights falling off, electric sockets not working, built-in heating/ac system regularly stops working. Also, learn to take shorter showers and say goodbye to baths; water runs cold after 30 minutes.
Major elevator traffic - there are three elevators serving the 33 floors and maintenance/construction crew are constantly using them in the morning.
The lower floors of the building were submerged in water during the flood and are undergoing repairs/currently inaccessible (including the gym).

2400 Chestnut could be considered a "Penn Law dorm" with lots of students from Penn Law, Wharton, and other Penn graduate schools. It's at a good location (although Chestnut St bridge is under construction) with a 15 minute walk to school and walking distance to bars and restaurants in Center City. It has a pretty good deal for parking. River-side apartments have great views of the river and sunsets. This year, elevators seem to break down or take forever, but other than that, it's a good deal. There's also a shuttle that goes directly to Penn Law, which saves from walking across the bridge in the mornings.

Constant noise from construction, unresponsive management

Great location and 25+ 1Ls in the building

Nice location and easy to commute to school (Line 42 and 21). The apartment also has a free shuttle bus service every morning and afternoon.
However, please be aware of the noises and do your own research by asking upperclassmen. All studio apartments are right next to the elevators and you can hear them moving all the time especially during rush hour (early mornings and evenings on weekdays; midnights during the weekend). All 1B1B are facing the railway and you will hear the trains honking from time to time, including after midnight.
Gym is a bit old.

I mostly like living in 2400. The apartments are updated and pretty spacious. One really nice thing is that they have a shuttle that takes residents to/from University City for no extra cost. It's been great since the weather got colder.

The bathrooms are a little small. They've been renovating the hallways and older units, so sometimes that noise can be frustrating, but the complex has been giving us warning as to when that will occur and tries to restrict noisy drilling to an hour a day. I think that's expected to be done by the end of the year but I'm not sure. The location is good, as it's about equidistant from school and where many social events take place in Center City, but having the Chestnut St. bridge still closed is annoying. That would affect most apartments around this one, though. We do hear the train go by/honk often, and that sometimes wakes me up.

Overall though, a lot of Penn students live here and I think it's a solid option. It's clean, feels safer than living in a walk-up, and I haven't had any problems with management/maintenance.

Other than elevators being a little slow to service, due to number of floors, it's been so far so good.

This apartment complex is in a great location (walking distance to both campus and Center City) with amazing views and pretty nice amenities such as a gym and free shuttle service to campus. For what you get, the rental price is a pretty good value. Management has also been responsive in my experience when I have questions. The biggest downside is the ongoing construction; part of it is unavoidable on management's part, as the Chestnut Street bridge is being repaired and Schuykill River flooding in September 2021 created other problems. The building only allows cats--no dogs.

2400 Chestnut St

I have lived in 2400 Chestnut for almost 7 years. It has a wonderful, responsive staff, beautiful views of the city from both sides of the building, and very nicely renovated apartments. The building is easily walkable to public transportation, Trader Joes, and other amenities.