I have been on quite a few dives in several parts of the world, and I can say that Aqua TCI's was one of the best ones I've gone diving with. They have a nice, fast boat, very good equipment and -this I specially liked- they give you a very good briefing before going in the ester. We had two 55-60' dives (many companies do a 50-60' first dive and then a 40' second dive) and everything was impeccable.
If I had to give some constructive criticism, I would just say that the snack between the 2 dives could be better. We mostly had donuts, and to drink, we had plain water and lemon water. Other operators I've gone diving with, give you sandwiches or wraps, fruit, and to drink, bottled water and sodas. Some times even fresh fruit juice. So that would be my only suggestion for improvement. Upgrade the snacks and it will all be perfect! Overall, they are very good and I will go with them again the next time I go diving in Provo.