Beware of the selection bias before making any conclusions. For every person who currently does X successfully, there will be a multiple of those who failed at the (nearly) same and aren't chiming in.
I had a lot of interest in the symptom screening tool, but then my provincial government changed the rules so child care centres didn't need to collect symptoms. I have 2 centres using it and I just cover the bills. I've told them they can use it for free. Probably more of a hassle to collect the $10/month from them.