Adil and Delphine were very welcoming, and helped out in a bunch of ways without my asking (e.g., having some food already in the fridge when I arrived late in the evening). Check in and check out were both very smooth and exactly as planned.

The apartment is indeed small. It's a little bit cluttered in a few ways as well (particularly the bathroom, which is a bit tight to begin with). But it was comfortable, and I slept just fine. I think there were singing lessons in a neighboring apartment on a few of the times I was there in the afternoon or early evening, which might bother some people, but it wasn't anytime close to when I would have been sleeping.

The internet access worked just fine, and the washing machine also worked fine (and was quite adjustable and thus able to wash my clothes in cold water, which isn't always possible in a laundromat). The electric heater was also quite adequate on some unusually cold nights in February; I didn't need it anywhere close to the highest setting.

It's probably less than a minute walk from the Tolbiac metro station and just a few minutes walk from Place d'Italie (and only a little bit more to Olympiades, which turned out to be useful right around when the metro closes). The walk between Place d'Italie and the apartment is a little deserted after the shopping mall closes (9pm, I think), though.

There are a whole bunch of Asian restaurants nearby (especially around Avenue d'Ivry, just to the east of Tolbiac metro station), and some more typical French restaurants to the West.