I took OW with PADI, followed by Dry suit with PADI,followed by AOW with PADI, followed a week later with ASC with NAUI.
PADI OW was for 7 or 8 students if I remember right. There were multiple instructors and dive masters involved in the pool and OW sessions.
I was not disappointed in the course itself or the quality of the instruction. I do remember a lot of time kneeling on the bottom in both the pool and OW, watching the instructors perform the skill and waiting my turn while the other students practiced the skill. This made for very long pool sessions where I got cold and tired and began to lose my ability to concentrate and learn.
I dont remember the OW dives being as tedious since the experience of diving in Puget Sound for the first time was so amazing. Still, kneeling and waiting in a silt cloud was not ideal.
My PADI Dry Suit class was with an instructor associated with a different shop, but I hired him independent of the shop. This class was one on one with one of the contributors to this thread. Obviously there was no waiting for other students and I was very satisfied with the level of instruction and got everything I hoped for out of the class. I would take another class from him without reservations.
My PADI AOW class was with the same dive shop I took my OW with and was lacking for a number of reasons. The biggest reason being the comparable level of skill of the other students. Think teaching to the lowest common denominator and you get the picture. I cant speak for all PADI shops but in this case, the other students were taking AOW shortly after completing OW and a few were diving in Dry Suits for the first time.
I have no illusions about my diving skills and know I have alot to learn but I was taking the class after having completed 36 dives while the other students appeared to have had far less experience. I had also recently completed a one on one workshop with a NAUI instructor, no card involved, to work on buoyancy and trim that improved my diving considerably.
I was also disappointed that after requesting a specific instructor, just before the class started I was assigned one I had never seen dive and knew nothing about. On the first dive I was a third wheel with two new dry suit divers and didnt even get a knowledge review. After 20 minutes their dive was over and thankfully one instructor had them return while another instructor and I had a nice 50 minute dive to work on skills I had requested although in current strong enough to make practicing basic buoyancy skills problematic. Shortly into the dive I glanced over and saw one of the divers upside down, tank resting on the bottom like a turtle on their back. I never asked but assume it was due to the dry suit recovering from excess gas in the feet drill. I remember practicing that drill in a pool though.
Next dive was 20 minutes and Ill leave it at that.
My third and fourth dives were the next day. The first dive of the day was a deep dive. We descended, wrote our name backwards, proceeded to 100 feet, wrote our name backwards again, and began the return. One diver needed to share an instructors air almost immediately after we started our return. My dive time; 25 minutes.
The next dive was navigation. I waited at the starting point for five minutes it seemed as an instructor attempted to get my training buddy buoyant. Finally we began with counting kick cycles. Not easy to do while your buddy is pulling themselves along the bottom with their hands. Dive time, 27 minutes.
I called the fifth dive. I just didnt see the point of another 25 minute dive where I didnt feel like I was learning anything and I had other commitments. Technically I have not completed the AOW PADI course and still need to schedule one more dive to get my card but since I took the NAUI ASD course the following weekend, I am in no hurry.
I dont want to be too hard on the dive shop. I belong to their dive club and enjoy diving with most everyone that works there, it just turned out their AOW instruction philosophy is not a fit for me and my goals at this time.
The NAUI ASD course was a great fit for me. There were four students in the class and an instructor dedicated to each buddy team for all dives. All students had at least 40 dives and had completed our instructors custom workshop class prior to the ASD course. The course included two days of custom, Puget Sound oriented classroom sessions followed by 6 dives. The dives and skills were also tailored to the unique challenges of diving in Puget Sound. I was challenged and humbled with the realization I was nowhere near the diver I hope to become yet came out of the class a much better diver then I started.
I cant judge for others on which agency is right for them but for me, at least for Advanced, this instructors NAUI course was a much better fit. PADI AOW taken shortly after OW might be great for someone just starting out where AOW keeps them diving and allows them to experience other types of dives. For me, I was not challenged due to the comparable skill level of the other students and therefore took little away from the class.
The NAUI class on the other hand was taken with students of similar skill, was challenging, and in line with the learning objectives I was interested in. I came away from the PADI course feeling pretty full of myself as a skilled diver. A week later I came away from the NAUI class humbled with how limited my diving skill is and how much I need to improve and learn to become the diver I want to be.
I dont believe the agency is as important as the goals and philosophy of the individual instructor. I assume a PADI course could be structured in a similar manner if the instructor wanted to and would provide the same result as the NAUI course did me but that was not the model with my shop. I think my PADI Dry Suit Instructor has that philosophy.