Obviously no system is absolutely foolproof. They all seem to have their issues and it really depends on how much you want to babysit the system. It is my understanding that the Hydraflex system controls both the volume of chemical and the water pressure keeping it constant and once it is set it requires no additional monitoring. I guess if you want to have one less thing to be checking on all the time it would be worth it. I did find out that they do not offer remote monitoring. They worked on that system but decided it was too costly as an add on and not really necessary. I know of one operator that has the system and swears by it. He put it in when he built the wash.