I had the standard Jabsco toilet with hand pump on my Bav. 38 (2003). I replaced all of it with a complete new toilet with the big bowl and in addition bought the electric conversion kit. Conversion is for dummies because everything fits to the place where the hand pump was. Hoses run the same way, electricity I branched off the shower sump pump, thus did not need additional cable run from the switch panel.
Besides the pretty high noise level it is a pleasure to use it, for small and big business. It just works. The noise is not that bad because usage is only for a few seconds. No regrets so far (after one season).