I agree with diver's post. Unless you are planning on cave diving, most of the dives are in the easy range. Except for when the current gets ripping!
Advanced diving is usually a trip to Coz. But it's mostly wall diving and different topology. I just like drifting along on the reef and looking in all the nooks and crannies. When I want something more advanced, I'll go to PDC for cenotes. Since you have already dove Coz, then you know what to expect.
My time share is in Cancun where Ben has his operation. Ben has instructed myself and my two youngest children. This trip, he is training my oldest daughter and my youngest one's fiance. I am VERY particular on instructors for training.
Lastly, I do all the dives with MAD. Reefs with the kids, cenotes with one of the cave guides and a trip to Coz with Ben. If you love the water and the Caribbean, you will have a great time with MAD. Drop him a line and discuss any package you would like and they'll make it happen. Door to door, pickup and delivery.
Do a search for MAD in the forum and see what other divers have to say.