Oh my! What a perfect question for me to answer haha!
Upper Cents is divided into 3 buildings: Congdon and Emery, Leavitt and McConn, and Smiley and Thornburg.
Congdon and Emery and Smiley and Thornburg are closest to Rathbone walking wise. There's the least amount of stairs. McConn and Levitt, on the other hand, have more stairs in order to get to them from the front. Personally, I think Upper Cents is second to M&M from being the most conveniently located dorm, especially if you take a lot of business classes. Yeah, there's no convenient bus stop, but every class is about a ~5-10 min walk since there's like three staircases near it that end up in different areas of campus.
All the dorms itself in these buildings are practically the same. No AC, all doubles (unless your roommate never shows up), tiled flooring, no elevators, occasional bugs, water problems, etc. All girls are on the 3rd floor (idk why), and all boys are on the 2nd floor. You can request AC if needed (for health reasons or being an athlete ONLY). Personally, I was fine without an AC since I'm from LA (the heat), and it's only really hot for ~2 months out of the school year.
There are two lounges/kitchens in each building. The cleanliness of the kitchens and the lounges depends on the residents. The kitchens feel like an old run-down chef's kitchen. They're huge but the appliances are older. There's one shared laundry space below McConn and Levitt and there's no door to it from the inside so you HAVE to go outside to do laundry no matter what building you're in. Except Smiley has a secret laundry space of its own (not a secret anymore).
I would say each building has its own stereotype (from my year).
I've never been to Congdon and Emery but they seem pretty quiet. Smiley and Thornburg are quiet at the lounge level but relatively noisy in the dorms themselves. McConn and Levitt are the troublemakers, they're noisy, destructive, and every problem goes on here. A lot of residents play games in McConn too.
I lived in McConn, and no I wasn't a troublemaker, noisy, destructive. I usually stayed at Taylor because of the trouble. This isn't the most organized structure for an answer but I hope that's all you need to know! I'll edit it if I think of more to say.
For more logistical information: https://financeadmin.lehigh.edu/building/centennial-I-complex
