Nice place in a quiet(er) area of Sairee Beach on Koh Tao. Nice pool with different depths to accommodate diving practice and courses. We haven't taken any scuba courses mainly because of the bad weather the last few days but it's definitely affordable to do it here. About the same price as all the others. If you want to take scuba lessons (and are a backpacker maybe), book one night here and then move on to the 100 baht per person dorms they have available a few minutes from here. Or just stay here. We paid 700 baht for their basic room with a fan and at least in December that works. Nice basic room, balcony, everything was clean, affordable (there are cheaper options in Sairee but they aren't as nice, I have checked a bunch).
The breakfast consists of a few different breakfast packages which was ok. If you mainly want some toast, scrambled, juice and coffee then you should book that as well (half price on hotels.com compared to 200 baht on the hotel).
Cheap laundry in the building next to the hotel (40 baht/kilo).
Overall I can highly recommend going to the Sairee area for starters. Perfect for younger people, lots of things to do, amazing beaches everywhere, amazing bouldering, climbing, trecking, biking and diving.