It seems like your initial shake-down trip went smoothly with only two issues requiring simple DIY solutions. Good for you. As with "Everything RV", stay on top of what goes wrong (stuff will happen) and enjoy your trips. Fortunately, PC problems run fewer than most other brands of motorhomes. During our trips, I always write down in a spiral note pad, what could use attention or improvement that I cannot address during the trip.
BTW: Cool that you ran into other PC owners. We rarely get such opportunities, and the few we do is a hit or miss concerning a conversation with the owner.
Neat tunnel!