Sounds like you have changed trailers as often as some people change underwear, just kidding. I hope you enjoy your new TT. My wife and I just bought a NC 29RKS LS. We felt comfortable with the Heartland products because there are at least three long term reputable Iowa dealers that are selling them. When you have established dealers adding them to their inventories it provides some confidence.
After reading through all the manuals it gives you an idea of the complexity of designing and building a quality TT. Trying to build TT's with all the different floor plan desires and consumer budgets has to be daunting.
I'd also like to put a plug in for Heartland and my dealer. My wife and I liked the layout of the 29RKS but we preferred a table and chairs. Heartland built the trailer and substituted the table and chairs for the dinette, which wasn't shown as option. There were some pieces of furniture we didn't want and our dealer acquired them and gave us a credit for them. We would have like to have an air mattress sofa, but it wasn't possible.
When we did our walk through we were pleased with a new feature in the RKS, that being the new closet arrangement in the bedroom. The elimination of the night stand with the longer closets was totally unexpected. The addition of; what I'll call the headboard with a recess shelf to hold whatever, between the two closets was a good idea as well.