In my experience Moorings is more concientious than most, but your boat is still rental equipment
. It will likely see far more use than a typical non-cruising recreational boat, thus more wear and tear, and there will still be pragmatic maintenance decisions which favor charter revenue versus proper maintenance. That's just the nature of the business.
Also, a LOT depends on the base manager. Ive known several Moorings base managers and all were very good. Ive known base managers for other companies that ranged from excellent to totally incompetent. Get to know the base manager where you base your boat, that personal relationship can make a big difference.
For example, Ive had boats in charter with companies where I also worked part-time as a captain/instructor. That made a huge difference, they knew me and knew I would be around often...quite often working aboard my own boat. I know my boats got better maintenance as a result, but negative things still happened.