I have used Jet Action for servicing and repairing our 2004 Yamaha WaveRunners for about the last year. Our machines have over 600 hours each on them so they are not exactly fresh out of the box. Ryan is as honest as the day is long. His prices are fair and he doesn't push repairs that you don't need. I was referred to him by my boat mechanic, Bret Campbell at CP Marine, as Bret only works on boats and not PWC.
In looking at his fleet of rental units in his shop I am surprised at how clean they look considering that they are rentals. In years past when I have rented PWC the units that I have rented looked like tired rentals. Ryan's fleet does have that well maintained look.