Sunscape Sabor was a great budget AI, and Secrets next door is a little more luxurious. You can dive with the house op, or with almost any op in Cozumel- since the pier is right there and they will pick you up. When we stayed there, the pier was like Grand Central Station in the morning with all the boats coming and going to pick up divers.
The pier is closer to Secrets than Sabor, but it's like a 3 minute walk from Sabor. Really really convenient. Two pools, multiple restaurants with no reservations required. Multiple bars (but no swim up bar, Secrets has that). Sabor has a drink mini fridge refilled daily with beer, soda, and water- no liquor in the room, no food room service (at least not last year).
If diving is not the focus of your vacation, I don't think I'd stay at Scuba Club Cozumel.