I haven't had this one long enough to give it a fair review. I had an earlier model a few years ago and it worked great until it didn't. The fault is in the electronic control and specifically the little device that measures water flow. I next put in a big unit with electronic control and had the same result.  The manual set up with push pins seems to be more dependable but the big unit eventually got plugged up inside and had to be replaced.. this one has great water pressure.