We went all over Santorini, and we thought Kamari was probably the best spot to stay. It was not overrun by tourists, there was a variety of restaurants, but my favourite thing was the boardwalk along the beach. The nightlife was beautiful, the bars were picturesque, and the entire area had a Santorini atmosphere without a ton of commotion. I would rather stay here than Fira.
Anyway, onto the place we stayed; I’d rate it higher but I need to stop at 5 stars. The place is private and spotless. A nice quaint kitchen is equipped with a stove/oven, and will suit everything you’ll need to make. There’s no toaster or microwave, but honestly that’s a European thing I think. The bathroom was great, I was most impressed with how beautiful and big the shower was. The bedroom was probably my favourite part, it had a big bed (queen?), lots of space (with lots of clothes space) and the lighting (as seen in her pictures) is gorgeous. The air conditioning is right in the bedroom so it’s not hot when you sleep. On the patio outside, there is a drying rack for laundry. It does, however, need to be done in the sink - there’s no public laundry in the area.
The only minor cons of the place, would be that there is no laundry on site, the big overhead shower was not strong (the handheld was great), and we were told that the tap water was not drinkable (not sure if it was just this place, or all of Santorini). We used bottled water while we were here for everything - its not expensive.

Overall, the place was fantastic. We spent a week, and she was fantastic with responding to your needs. She provides a book for you with maps and information you may need during your stay. I would definitely stay here again. Thanks for a great week!