"100% agree with all the posts regarding the clarity and taste of the water. However, customer service for this company received a double gold star from us. The personnel taking our order and following through when I left a voice message was impressive. The equipment arrived in perfect condition, no parts were missing. Two reasons for purchasing this unit: we have extremely hard water and we were going through coffee makers way too fast. This RO unit resolved all of our issues. Keeping Apec on my favorites list and telling everyone."