My husband and I really did our homework before buying a new spa. We bought from LifeSpas because they took the time to explain the differences to us (unlike any place else we looked). My husband is an Engineer so he appreciated the technical info. and the demonstration. We've owned our LifeSpa for over a year and we love it. We both agree, its the easiest spa we've ever had. Me? I'm not so technical..we chose the Aqua Last for the low maintenance because we both have demanding careers and haven't had a bit of trouble. Save time, go here 1st!