Agree with ggunn on the car comment. The only time I rent a car in Cozumel is for the day to drive to the other side of the island. If you're that close to town, you just don't need it and trying to find a parking place in town is much more hassle than its worth. There are about 8 parking spots right in front of the resort, but they are hardly ever occupied. You're close enough to town to walk or a cheap cab ride. The resort is very private, and staying there allows you to avoid the cruise ship crowds.
Scuba Club is my favorite place to stay. You might get a feel for the place from a trip report that I did from my trip there in March.
You can read it here. Lots of pictures too.
One of the comments you hear a lot from guests there is that they make everyone feel very welcome. The staff there makes you feel like they DO appreciate that you picked their resort and are grateful for your business.
I like the convenience of it. Roll out of bed, down a couple cups of coffee, go to breakfast, grab your dive gear and go diving. When you get back, lunch is waiting for you. There is also good shore diving and they don't charge extra for it, or you can opt to do afternoon, wreck, dusk or night dives by boat.
They are often referred to as an all-inclusive. They are not. They have package plans that include rooms, meals and diving, but offer a light version that includes breakfast and lunch, but you're on your own for dinner. The food there is excellent, but we also all have our favorite restaurants in town. Drinks are never included in their packages and are paid for at the end of your stay.
Since you're looking at November, you'll also appreciate the dive boats. They have several that are very well sheltered from wind or rain that might kick up from the North.
I'll be going in less than two weeks! My eighth or so visit to SCC (I've lost track) and I can't wait to go back!