Very nice hotel with a nice pool. Maria and the staff were very kind and helpful. The location is pretty good if you want to visit the south of Santorini (15-20 min walk from Red beach). There is a bus station in front of the hotel from where you can take the bus to Fira. We only travelled by bus while we were there, it's quite easy. However, you may have to take more than one bus depending on where you want to go (Fira being the main station from where all the buses leave).
The only "issue" we had was that the walls weren't that soundproof, so depending on your neighbours it can be a bit noisy...
However, I would definitely recommend this hotel !