Either because of a mistake in the booking or because it wasn't displayed on the screen, the room I booked turned out to be a smoking room. Luckily, there was a non-smoking room of the same type. I was able to change for free.
The room was comfortable, with cool air conditioning, hot water, a large TV, and free Wi-Fi. However, the bathroom floor was a bit slippery, as if it hadn't been scrubbed enough.