Spectrapure is great. Live in San Tan Valley and the water is terrible out here. Their system keeps my water prestine for my Reef tank. Would definately be 5 stars but unfortunately their customer service rep who brings the supplies out is very rude and makes you feel un-welcome. Should definately give the front desk employee a training on proper customer service, not exactly friendly. Awesome Product and online ordering for pickup is on point. Will be a customer as long as I own a Saltwater aquarium.