We have had a 2109s now for 2 years and have camped probably 30+ times with zero issues. Compared to my last camper, this rockwood was a huge upgrade. A couple necessary mods include a memory foam cover for the mattress, double size piece of foam for the couch (makes it nice and flat for 2 adults), and two smaller fold up tables to replace the big heavy single table that comes with it, and that's about it. Sorry to hear others have had issues with theirs, but ours has been completely trouble free.
2013 Mini Lite 2109s
2006 F150 STX 4x4