the spa i bought is a very simple model manufacured by calspa..it is replacing a 2k plug and play that i had for 9 years..so far so good ...it came with a defective cover one side where it folds was not stiched right,called cal and in 4 days a new one was at my front door,ive said this before if you are looking for an acrylic 7 ft tub with 110 plug and play option i do not beleive you will find a better value in the 3500 dollar or below range....but i do realize only time will tell....