Our Outback had one problem when we purchased it. The drain in the shower was actually higher than the bottom of the rest of the pan. And water doesn't run up hill. I could look under the shower pan, and it was all set it stone (almost). Black plastic pipe cemented into place.
I did take it back to the dealer and under warranty they set the P-trap under the shower correct. BUT! Didn't tighten it right, so, following trip was no over Christmas to Florida and, yup! Shower leaked. Fortuntely, I just let it leak on the ground until we got back. Took it in again and they had to removed everything again tighten everything up. But the second time they got it right. It's been 3 years now and not a hint of trouble with my Outback (also by Keystone). Although we did have the front cap repainted.
What I'm getting at, unfortunately, getting a camper right out of the box is going to have some problems somewhere. Sounds none of your problems are major, just little things, like most are. You CAN fix it yourself or wait your turn in line for the next available slot at the dealer.
Personally, I prefer to fix it myself, warranty or not, unless it's really something over my head (like painting the front cap or pulling the entire shower). We did have 1 screw missing on a cabinet door I replaced myself.
So, really, it's all a matter of what you really want to do. If you want to take the time to fight city hall and have your camper out of commissions (sort of say) for a while, then fight for warranty repair. If you want to use the camper right now, get out the screw driver and fix it yourself and get on with life and camping.
In my opinion, if I have the ability, time, talent, tools, and resources to fix it myself, I will. If it's something over my head, then I take it to a shop, warranty or not.
