I did quite a bit of research and comparisons. Checked out both airwaterice and the Filter Guys (and a bunch of other aquarium sites). I bought the Ocean reef +1 from the filter guys as they had the best setup for an excellent price. They were also very helpful and replied quickly to questions. I juggled the filter setup to take care of lead as I live in NYC and the pipes are very old here. Stage 1: 5 micron sediment filter, 2: Matrikx +1 (chlorine, VOCs etc.), 3: Matrikx +Pb1 (lead, etc.) 4: RO 5: DI 6: Got the RO bypass valve for adding the inline GAC (coconut carbon) filter for drinking water (supposed to taste better, we'll see).