Perhaps you were unlucky with the 360, I have the 280 and to be honest have put very little money into it normal new tail sponge or whatever you call it, new bags which I buy from Amazon short money consider those normal maintenance items. 3 weeks ago on the side with 3 wheels 2 large one small in the middle the front wheel fell off. Wife took it to Leslie they put some tape on the screws which hold the front wheel on they screw into the frame the frame had stripped the screw holes. Guy did it for free did not even use plumbers tape which might have worked told her it won't last long will need to buy a new one.
He was correct lasted all of one day then the wheel fell off again this is a common problem with the 280 after many years and mine is 12-14 years old, luckily the metal plate with the screws that hold on the wheel stayed so no fishing for the plate and screws. They do sell the frame part for 65 bucks plus shipping found it online but that was the last resort so I found some marine JB weld which I figured would work but I called JB Weld Tech support. He asked me what kind of plastic it was no clue so he told me the marine is not what I want I needed the plastic bonder part#50139 which is waterproof also.
So I cleaned the screws with Acetone mixed a small batch filled the screw holes with some and covered the bottom 1/2 of the screws let a minute go by and screwed down the plate holding the wheel went easy got it tight enough without spinning it, I did put a block under the 280 to make sure that wheel was not touching cause it would put pressure pushing up the wheel and the screw plate. There is an adjustment on that plate to make sure the spline is properly contacting the wheel teeth I adjusted before it set then left it alone for 30 hours dumped into the pool all is well works better than it has in a few years. My guess it was not contacting the spline enough due to screws being loose.