First, triple check the chassis rating. Check the weight sheet in the back bedroom closet and the entry door jam.
Call Tiffin with the VIN and see if the hitch recalls are needed / have been completed. If not, get the parts sent to the dealer and have them do the fix (it’s relatively easy).
Be thorough on your walk through, and I don’t mean worrying about a little scratch on a counter or cabinet. I mean learn how things work so “you” don’t break something thinking it’s really a build problem; focus on anything and everything that moves or is electrical/ electronic.
Make sure the slides go in / out smoothly; if a slide has been in or out a while you may hear the seals “pop” but that’s normal. And never stop a swintek slide before it’s all the way in or out; if it’s in and you want to extend it first press the “in” for a couple seconds before you hit “out” and hold the “out” button once it’s out for 3-5 seconds until the motors sync and you don’t hear them; and vice versa for the other way).
Make sure you understand how the entertainment system works......
Ask for “tips” as many of these guys have “seen it all”, and they will appreciate you asking for advice vs. coming across as an expert and treating them like they are idiots.
I’ve talked to enough coach techs and they have all told me that it’s their perception that about 1/2 of all “warranty” fixes are owner related; either they knowingly broke something and blame it on “it just happened” so it’s a warranty fix or they are totally ignorant to the fact they broke it which also equates to some folks having something break more than once
Oh, and it’s never going to be perfect, and if that’s your expectation you will be an aggravated and unhappy owner.
Enjoy it for what it is - a “camper”. Our coach hasn’t been perfect, but we’ve had everything resolved in a fair and reasonable manner throughout our 4+ years of ownership, 32,000 miles across most of the US and eastern Canada, and spending over 20 months in it. Yep, even with the aggravations along the way, we’ve really enjoyed our 31SA and have never second guessed our decision.
Get it weighed asap “loaded as you will be traveling”, even if just on CAT scale, and set the tire pressures appropriately. Get a TPMS system for the coach and your toad.
Good luck, and keep a positive attitude and patience.