The Rescue class is by far the best course I have taken and one I think all divers should take for themselves and for their buddies. I hightly recommend it. Having said that, I am not convinced that simply having done 25 dives is enough for a lot of divers. For you, maybe it is or maybe it's not-- only you and your instructor can make that call. While having great diving skills is not really necessary, having confidence in yourself and your equipment is. Could you handle a 200 lb guy ripping off your mask, pulling your reg out of your mouth and shoving you underwater? My instructor believed in realistic simulated panicked divers. (by buddy only got away with it once, I learned) I am not trying to convince you not to take the course, far from it, but unless you are very comfortable in the water, a little more experience might be a good thing.