I'm thinking of getting one. Do you run RO or RODI? Also was there much involved in installation? Did you do it yourself?
I went for RO/DI - worth going the whole hog I reckon, especially if it's a dedicated unit (some people buy them to use for getting RO to drink, etc. as well) - so if you don't have any other use for it, might as well have the DI bit.
Installation was dead simple - adaptor that hooked into the washing machine tap line with a john guest valve sticking out of it... stick a bit of thread tape on, tighten, stick hose onto valve, run to unit. Tighten a few bits up, and all done. No sweat, not real physical effort involved, and most of all - all the bloody bits I needed to do it came in the box ;)
(and for that glowing recommendation, I'm hoping for a bloody great discount on my next set of filters that are long overdue... so overdue they don't even have my current address to keep sending me reminders! :p:D:p).