Most of the jet ski rental places use Yamaha. That says something about the dependability.
On Ft. Myers Beach in Florida there are about 5 jet ski rental businesses with a total of somewhere over 50 machines, all Yamaha.
The business in the Weirs Channel, Lakes Region Jet Ski Rentals, runs all Yamaha's and last season they did not tow one machine in all year. That says something about dependability when renters can't even break them.
I currently have my fourth Yamaha and and I think it is a great machine.
Good luck in your search.