That one probably has a Suzuki engine so that is a good thing. the rest of the machine is Arctic Cat, so the jury is out on that?
The jury is not "still out" on anything from AC. They have proven to be exceptional work horses. Aside from the Thundercat, they will not win any races, they are heavily built machines, intended for work. The model you are looking at does indeed have a suzuki built motor and the auto tranny is bulletproof. You will not see any of the belt issues that have plagued Polaris over the years.
The price seems very good. Low mileage, but that doesnt necessarily mean much in an ATV because they can be worked hard in low miles. The main thing I would look at with that machine is the A Arm and suspension bushings. They are not very good from the factory and should be replaced. If they wear out, they can oblong the holes for the shocks and A arms and lead to more costly repairs.
I would jump at the chance to buy that machine for that money, it is a good deal.
My dad has 27,000 miles on his 2007 650 H1 (Arctic Cat built engine) TRV. Still looks like new.
That machine will go for many more miles and will easily do more work than you could possibly imagine.
Good luck on the purchase!