Aug 1st marked my 3rd year of living in the bus.
Here's an update of problems, etc since last year:
1. Water leak at a connection at the water heater, where PEX tubing meets a brass fitting. Solution was to disassemble and re-do the teflon tape on the brass/male side.
2. Painted plywood squares over the windows continue to peel and look kinda crappy. Just need to stop being lazy and fix it either by re-painting or skinning over it with sheet metal.
3. The agitator handle on the Nature's Head waterless toilet broke after about a year of use. I emailed the company to buy a replacement; they sent a free one via USPS Priority Mail.
That's it. Everything else is functioning as expected.