Moved into a newly built home in 2017 and needed to get a water softener/filter system asap. We contact 5 Star through Costco. The entire company was just amazing throughout the entire process. Everyone's so friendly, their very responsive, and honour their warranty (had a filer leak within a year, and they came by to fix it asap under warranty). They provided drinking water faucet whose colour was off from my other faucets. During the follow-up to the installation, they noticed and immediately offered to rectify it without me asking, and didn't charge me. Absolutely amazing customer service. I cannot recommend them enough!