The room itself was clean and comfortable. I found it pretty as well, lots of little touches that made it feel nice and cozy. No issues with heating, and there was a small space heater provided in case issues did arise. The location was also convenient in terms of transit options.
However, I had a pretty rough time trying to sleep, and wish I'd read the other reviews more carefully. The walls are indeed very thin, and the people in the building made noise at all hours. The noise isn't the management's fault, of course, but do keep it in mind if you read this! There's also an intense street light right outside the window and the curtains were very thin, so the room was bright enough to read in at night. I barely slept most nights between the two issues.
The communication from the management of the room was quite fast. I asked for towels to try to cover the windows a bit, plus a light bulb for a lamp that was missing one, and they provided both within a day.
Overall I'd say if you're one of those lucky people who can sleep through anything, this is a nice place to stay. Otherwise... pack earplugs and an eye mask!