I have lived here for nearly 6 years and I have zero complaints. This was the second building I checked out once I arrived in Chicago, and once I saw the place I immediately made up my mind.
The management & staff: Exceptionally cordial and helpful. Whenever I had a problem (e.g. my microwave died, my sink was clogging, my blinds broke), the maintenance staff was there to fix it within 24 hours. They even helped me hang things on my wall.
The apartment: The studios are small, but this wasn't. problem for me: less room to fill up. Plus, the size is large enough to fit the essentials (e.g. sleeper sofa, desk, dining table, bookcases) and move around (e.g. dance on my area rug); yet small enough to feel cozy. Heat is included and you have some control over the degree with a knob on the radiator. Each studio has a ceiling fan, and you can rent an air conditioner for $100 during the summer (which they will install for you--even if you buy your own). They treat for bugs about once a year, and the only bugs I've seen in 6 years is one dead cockroach under my sink and one zapped silverfish. The kitchenette has a gas stove and range top as well as a microwave. Space for clothing is in short supply (only a closet for hanging clothes and a sliding mirror with some built-in shelves), but that, too, hasn't been a problem for me (but then again I'm a guy).
"Amenities": The building has a roof deck with an incredible view. The laundry room is clean and has a running machine as well as a sofa and TV. The front desk is manned every day of the week, and they receive your packages there to be picked up. You can have a cat. You can smoke in your room. You can paint your walls (or have the staff paint them for you). And you can hang whatever you want on your walls (e.g. shelves, cork board).
Really, I can't recommend this place enough.