Worth more than 5 stars
Support team was absolutely brilliant. I emailed them because I was having difficulty with installation and to my surprise I got a reply within minutes. Because of my busy schedule, I sometimes emailed them at midnight. I was walked throughout patiently even replying to my email at 4 in the morning. After buying -and spending on different cheap products, I regret not discovering this sooner. It works way better than others.
Takes some time and experience to tune it, but works like a clock now
I got this about 1 year ago just when they launched it. At first the pressure would swing like crazy. I didn't notice and just kept tuning it. After I lost all my fish (about 20 of them) I contacted them on messenger and their support was A M A Z I N G. They guided me through the process of disassembling the needle valve, checking it and assembling it again. Since then I've kept it at around 37-38 psi of working pressure with about 2 bubbles per second and my paintball tanks are lasting about 3 months. Plants a doing really well.