The 26RR is an excellent balance of value and features in a half ton towable toy hauler. We've had ours since April of this year and love its flexibility. We were so happy to find a walk around bed and full width bathroom space.
This forum is a treasure trove of advice and suggestions. Members such as Riderbloke and rmac04401 have been especially insightful. My ongoing farkling of our 26RR can be traced back to their inspiration.
Lessons learned thus far for us include:
The AC ductwork and vents were not properly sealed.
I found out why the the AC seemed to struggle when I realized most of the cold air was blowing into the attic and the return was pulling from the attic instead of the interior living space.
Sealed the huge hole in the floor underneath the shower pan with expanding foam. Also sealed smaller holes under the bed, bath sink and kitchen sink.
Added addition sewer hose storage since the dump valve is towards the front of the trailer and many sites we stay on have the sewer connection at the rear of the site.