This was the most affordable option I found for Koh Tao diving and the quality was excellent! The price included skills/equipment review, equipment rental, an in-water skills review, and 2 fun dives. The dive instructors were incredibly friendly, relaxed, and enjoyable to be around. My bf and I hadn't been diving in quite some time but after taking a quick "test" (basically a skills review, don't worry about not passing) and reviewing how to use the equipment we felt pretty comfortable. It was a pretty quick review so I did feel a little unsure once we were actually on the boat and getting ready for our first dive (since it'd been so long since I'd dived), but the instructors were there to help if I had any questions. The trip to the dive sites were short, and the dives themselves were great. Visibility was good and we saw a nice variety of coral, fish, sea urchins, sea cucumbers, and 2 sea turtles! I would definitely recommend this company!