Everything about our stay at Hotel Sole Costello was great! I can't say enough about how friendly the staff was - from check-in, to breakfast every morning, and especially to the poolside bartender in the afternoon! Some of the negative reviews we had read prior to our trip mentioned that the rooms didn't have air conditioning in June, but that was absolutely not the case! Our room had central air that kept the room feeling great and was constantly operating (as long as the balcony door was closed).
From our experience, the negative reviews saying that the rooms were hot or full of mosquitos were absolutely unfounded.
Quick note about traveling into downtown Taormina - there are two staircases that lead from the hotel directly down into the city center, and the front desk staff gave us very clear directions when we checked in about how to access each staircase and which one to use at night, etc. It was an easy walk down (taking about 15 - 20 minutes by the time we stopped to admire the amazing views), but it could definitely be a challenge to walk up the stairs at the end of a long day of sight-seeing! Luckily the city bus (stops are labelled "Fermata") stopped right at the front door of the hotel! The name of the stop is Madonna della Rocca and there is a bus schedule posted right in the lobby for easy reference.
All in all - a truly amazing hotel and great way to experience everything that Taormina has to offer!!!