The Propspeed works great. I boat
in a very heavy fouling area (Chesapeake) and I can avoid a midseason haulout and powerwash with it (a savings of $250-300). But its neither cheap
or easy: $200+ for a kit and significant work
Follow the directions to the letter. In fact, read them three times (I know, this goes against every male instinct...) Everything must be taken down to bare metal and carefully degreased and dried before application. I have never purchased/used their Propprep solution - instead I found acetone and alcohol works fine. Have everything laid out ahead of time and have a helper as you must not allow the etching primer to dry excessively before the application of the magical clear topcoat. Just approach the job the same way you approach neurosurgery and you'll do fine.