I use this every three months as recommended. It appears to have a cleaning time of about a hour, twice as long as usual. I don't know what the difference is in the cleaning process besides the extended time and soaking of the granules, but I've had no clogging issues with my unit. I do a general cleaning half way between uses and just before to remove any light build up of pureed poop in and on the hopper. I would recommend using this to keeping your catgenie running smoothly and to avoid and potentially gross clogs.