We got a 2015 T32C back at the end of May. I can't comment on fitting your Polaris in the back, since the garage layout is different. In general, we like the unit.
I've found and fixed a lot of small fit and finish issues. Individually, they aren't worth the time and fuel to take to my dealer, and I'm handy enough and I found them far enough apart (in time) that I didn't want to have to deal with them until I did have enough to be worth taking go the dealer.
We don't have an oven as you've mentioned, but we found we really like the convection oven mode in the microwave, which we find more handy than an oven, admittedly not usable without AC or the generator, unlike an oven. We almost never used the ovens in our last three trailers, preferring to cook outside on the Camp Chef's fry grill or grill box, or in a skillet. However, we have used the convection oven a fair bit so far.
2015 Octane T32C
2012 Ford F-250 Lariat/FX4/Diesel