I have one - I love it but for one thing. It is very intolerant of temperature. I live in MN and once is got cold, the output dropped to almost nothing. I ended up plumbing my hot and cold together and the temp was about eighty degrees and it went back to normal. It's a nice system but if your incoming is below 70 the output sucks. I tried calling them about this and all you can reach is a message. YES, they did call me back but I couldn't answer at the time, so the process starts all over again.
SO, yes it works great but customer service sucks.
IT works best in summer but sucks in winter.
It's cheap... at this point.
My output TDS is "0" so this is good but I wonder how temperature affects this.
I've never had an RO system this sensitive to temperature. They should fix this.
By the way - when I was troubleshooting the output volume issue, I pulled the membrane and tried to drain it of the cold water. The water was "VERY" Brown in color. WHY, would any water in an RO system be brown? Still working on that one. It wasn't brown when it went in, so why would it be brown when it came out?
Once I pulled the membrane and put in the bypass cartridge, the flow was back to normal so the temperature of the water through the membrane was definitely at issue.