I am very happy with the RO 90 after a year. Still running the original filters but getting close to replacing them. We have saved a ton of money not buying distilled water for our coffee maker and Soda Stream carbonator. We have it connected to the fridge ice maker and don’t need to use the expensive filters in the fridge. We also use it for making crystal clear tea. We prefer it for drinking water as well. It has been a great investment.