I switched to this a couple of years ago when Tide stopped being a thing and I'm very happy with it. No issues with detergent build-up in the machine cand my clothes are clean. (Note I haven't had *my* water tested, but a neighbour tested their water and says they're 500ppm, so I'm going with that, which is what's listed for the city in general). Kids were out of diapers by the time I had to switch so can't confirm on that, but I would consider it worth trying.
