Great value, easy install, simple start-up procedure, and desirable features. I didn't like the way the access door was fastened. While secure, I thought that repeated opening and closing could wear out the retaining screws. Since annual draining requires access door, I removed the drain valve (easy garden hose fittings) and attached a garden hose to the spa drain. This brought the drain outside of the spa and eliminated the need to remove the access door every year.