They are a decent middle of the road spa. Most people here would probably tell you that there are a lot better options, but there are also worse.
I don't like their insulation system, especially if you live in a colder environment. Their jets are generic and nothing special. Their water treatment is just a standard ozone or UV system you can buy anywhere. The warranty is less than most. Again, they aren't terrible but for their price I would look at Dimension 1, Marquis, Hot Spring, Artesian, Bullfrog, Sundance, Jacuzzi. These are all widely considered better brands.
Good luck!