I had one of those cheap ebay systems. complete crap IMO. BRS seems to be highly regarded. The system I ended up upgrading to was fantastic. It had a booster pump and I was able to make water a whole lot faster. Vertex Puratek. I got mine in a trade deal with bad cartridges, so new cartridges from BRS and I had an awesome system putting out 0 TDS after the DI stage. They cost a lot (like $400 or so last I remember), so it's probably a bit much for such a small tank... but the ability to use a float switch vs a float valve to shut it off was soooo nice. I felt a lot better about it, although I typically just hooked it up and tried to remember to shut it off (sometimes, water dripping from the ceiling would remind me).