If you're looking for Sicilian charm, this is not your place (for that, visit Ciuci's Manor near Agrigento, it's a wonderful place). I'm sure there are other options in the heart of Cefalu as well.
The rooms are probably comparable to a Hilton perhaps. It kind of has the feel of a "business-class" hotel, without conference facilities or a bar, but definitely a step up from someplace like a Hampton Inn. The clientele was a real mix from all over the world.
We stayed in a real variety of places on our trip to Italy - we rented an apartment in Sardinia, stayed at an agriturismo (Ciuci's) near Agrigento, and stayed in some older charming places in Siracusa and Rome.
Artemis is a new hotel. And it's not in the old part of the city, which you should be able to tell by a quick check at the map. It's two blocks from the beach. And from what I could tell, it would be hard to get any sea views, but perhaps there are a few rooms with a sneak peak between buildings that face the beach. It's maybe 5 short blocks from the hotel to the edge of the old part of the town. For us, the price was right. We were able to get two adjoining rooms for about 190 Euros a night for the pair. Other recommended places were a good bit more expensive than that.
I recommend going to the "private" beach near the hotel. There's a bunch of "public" beaches along the stretch of sand intermixed with private beaches. If you like laying on a beach towel with no shade, then the public beach is fine. Through the hotel, for 10 Euros at the private beach you get two beach chairs and a large umbrella for the day.
Siamo Americane. So we're used to A/C. And I'm thinking that I'm obsessed with A/C since I've mentioned it in at least two other reviews of places we stayed on our trip. But especially for visits to the beach on a hot summer day, we really need that A/C break. Many more traditional and more charming places in Italy have no A/C at all or it's a small wall unit. When you're used to strong A/C on a hot summer day after visiting the beach, it's definitely a plus.
General note: Cefalu is a perfect place to visit for families with children. You can spend the day at the beach and combine that with mornings and evenings visiting the old part of Cefalu. We also visited Siracusa on our trip. That was definitely the lowest point for our two boys, ages 8 and 14. My wife and I enjoyed wandering Siracusa for a day. My boys couldn't imagine doing anything less interesting (fortunately, we discovered an Archimedes Museum in Siracusa, which they did enjoy). Cefalu gives you a chance to explore an old Sicilian town with a good mix of restaurants but also gives you a nice beach vacation as well.
Another general note: Especially wit kids, unless you're really really into ancient Greek ruins, pick one place to visit in Sicily. We saw some in Siracusa, which were fine. The ones in Agrigento were far better of course. We didn't visit others. My boys would have mutinied if we did. Instead, visit an agriturismo and explore some of the countryside of Sicily. It's beautiful.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.