Wife and I love our "13" 28SGS - on our third year. Great layout for the two of us.
No problems that I could'nt fix myself.
Some mods I did:
Got rid of the mouse hole power cord.
Installed "Progressive" power monitor.
Turned Dining table 90 degrees and took out 2 chairs.
Installed slide toppers.
Installed a dedicated 20amp plug for an electric heater.
Future Mods;
Change steps to bedroom from 2 risers too 3 risers
Switch our swivel/rocker chairs for recliners.
Replace sofa with theater seating.
Hope you enjoy your Cougar as much as we do.
Allan & Sadie in Virginia