I went through four instrcutors. First one taught us one weekend--I had studied everything and home and just showed up to the dives, the other two people in the class, two girls who were sisters, went to the class. First weekend was in the pool with this guy. I had never set up scuba gear but had it all ready in half the time of the girls. In the water, one of the girls kept complaining that her toe was cramping up. she freaked out a few times and surfaced, but we were at 13' so it was ok. Next weekend, that instructor was out of town, we got the dive shop owner, who does alot of cave diving. Another instructor that she was teaching met us at the spring and we all got in the water. First dive was simple, I had some trouble sitting still on the bottom, I wasn't too negative, but did ok. The one girl had trouble descending and equalizing. Next dive was in the second spring, right next to the first. This dive, the instructor felt sick and had the person she was teaching take us down. Once again, the one girl had trouble equalizing and descending. She did ok though, and she did have a faulty bc: dump valve leaked. Made her negative if she didn't add air every minute or two. Next day, we got the dive shop owners' ex husband, who is also a cave diver and very experienced. First dive was ok, last dive the same girl couldn't equalize well and so after having myself and the other girl do some skills at 40' or so, he told us to just swim around and have fun while he spent 30 minutes workingon the skills with the other girl in a little shallower area.
Honestly, I don't think the other two girls are going to get into diving much. One girl's husband dove, and she was getting certified to go diving with him on a cruise. I was getting certified to go diving on a cruise this december, but also becuase I'd been wanting a certification for years. I already have equipment, bought a week or two after the class ended. Two of the dive shops locally, including the one I learned at, teach PADI. The third teaches NAUI. My friend got trained NAUI. The shop I was trained at is very much a Scubapro shop, the other PADI place is very much Oceanic, the NAUI place I don't know about, I haven't spent much time there. I'm not sure how well the other two girls will do while diving, especially the one that had problems with toe craps and panicking underwater and surfacing quickly. I might surface quickly if my mask flooded in saltwater, becuase I cannot stand having it in my eyes or in my mouth, but in springs, the other day I dove with a mask that flooded every minute or two (loaned it to a friend and didn't adjust it before the dive) and didn't surface until my buddy wanted to. My training was adequate, and the instructor did pass the other two as far as I know, though he spent a good bit of time working with the one. The class was small, so we all got great personal attention, they made sure we did good on the skills and looked like we were diving well, rather than having us all do the skills at once. I was worried I'd be in a big class that had us all do the stuff at the same time, where they wouldn't notice if I wasn't doing something right, but it was totally great.