Well I'm glad to hear it, I just see so much abuse of the carts that I'd be afraid to buy one. I'm not meaning to single out Ultimate, most carts take abuse. There was one kid going from operation to operation getting fired each time for what he did to the carts. I've also seen more than a few tourists driving their rentals into the water.
You're right about the maintenance, mine goes in once a month for a full service including oil spray.