Welcome to R2R. Before giving a recommendation a few things it would be helpful to know a few things such as, are you on a well or public water? If your on public water do they treat it with chlorine or chloramines? How good is your water pressure?
And how much water do you need to make per week/month? There are several people here using the BRS RO filter systems and love them, they have several different systems to suit different needs. I myself found a brand new system on Craigslist made by Crystal Quest and I works great after I upgraded it with BRS parts.