I purchased this water softener last month, and installed in one day. The installation went fairly well, although it was difficult to get the plumbing (I have copper in my house) lined up to the input ports of the softener. It would make it easier if there were some sort of flexible hook up, like hooking up to a washing machine, that made it unnecessary to precisely align the pipes to the inputs on the softener.
The other thing that isn't quite clear from the manual is how often the softener recharges. It seems to be a function of how hard your water is, and then the softener recharges based on that hardness value. I would like some sort of manual recharge schedule, so that I could set it to recharge twice a week, say every Wednesday and Saturday. I'm still not sure how often this unit is recharging--once a day, once a week?