I am the second owner. Been used primarily to commute between Montana and Southern California.
The tires are new, The starting batteries are new along with a new charging controller to handle the Solar panels which now charge all 6 Batteries. Other upgrades include an Impedance stove and cookware and a new tanked water heater. The water heater replaces the original "instant on" type heater which did not work well in cold weather.
The HJ model of Seneca has 3 slide outs which makes for a comfortable bedroom with a lot of storage. The living area when opened up is quite spacious. The dual AC units provide plenty of cold air when it's hot and the electric fire place will keep the living area comfortable even in cold weather.
I have owned 3 motorhomes, a small class C, a class A and this Super C. The minute I drove this one I was sold. It drives like a big pickup truck with no feeling of "Bigness" like my class A. It is narrower the my class A which makes staying in your lane easier and it handles strong crosswinds much better. The turbocharged diesel pulls hills with little effort and high altitude has no effect.
This motorhome has been cared for and is in first class condition. There is nothing that needs to be done to it but drive it away.