We had a great stay at Iris Boutique hotel.
Upon arrival in Santorini, we did struggle to find the hotel. Once we communicated with the host (their phone was not working), we were checked in efficiently.
The room was basic but had everything we could need for a week's stay. The pool was lovely and the bar was appreciated. The vicinity of the beach was great. Breakfast was good, and the staff were all very helpful.
If staying in Santorini again, I would stay here.