2012 SP220 and couldn't be happier. Tows beautifully, great interiors and a decent amount of storage space.
Going in I knew there were some immediate mods/replacements I would do. Ie., the stock mattress bites, the showerhead and faucets are a little cheap, replacing the little noise maker vent fan, etc.
Nothing major you can't get by with keeping is "stock", but just a few little touches here and there make it much more enjoyable.
One thing I would note on the unit your looking at. It has a fairly light frame and suspension. That was one thing that I really liked about the 220. It's the lightest and shortest of the larger series that has the heavier frame and suspension. It's around 300lbs heavier (dry) than the one you're looking at, but load capacities jump from around 1300lbs to 3200lbs and gives a much sturdier ride if you plan to do much camping off the beaten path.
3 years full time in my rig and wouldn't hesitate to buy it all over again.