I ended up staying in three different rooms, so I'm going to give feedback based on being in those three rooms.
My original room (107) was a Superior Double Room. Great size for a solo traveller and located at the back, so it was quiet. If you sleep later than 7am, be aware of a humming noise outside, but according to reception, that can be switched off.
I was moved because there was no hot water on the first floor, so I went to a Deluxe room (206). Very spacious with a great view of Las Setas. Bigger shower as well. Sadly, I moved out of there after 1 night because Las Setas was home to nightly performances that end around midnight - all-in-all, the sound of people outside dies off around 1am. I hoped they might have triple-glazing or some kind of feature that would block the noise out, but alas, no. So do bare this in mind, if you're booking a Deluxe room like this, that's facing the square.
Last room was in (202) was a Superior Double Room but smaller than 107, with oddly, no bin in the bedroom area (there was only a small bin in the toilet area) and no specific area to put toiletries on in the shower (the other two did have this). It was also at the back, so it was quiet and comfortable. Great night's sleep there.
Breakfast is buffet-style with a few pastries, fruit selection and eggs.
The staff were v friendly and handled the hot water issue well. The location is great. If there is a Deluxe room at the back, I'd definitely book again.