He has a coat like putting a Malamute or Chow underneath a long coat GSD.
If this is the case, I would NOT try to clip him at home. That type of hair is insanely difficult and tedious to work with even for a professional groomer with all of our tools and equipment; I can't imagine trying to deal with it at home. If you can just keep him brushed out really well, to the best of your ability, and have the groomer handle his clip, I think that would be the best solution--the time and effort that would be required for you to clip him at home would be prohibitive, and he still wouldn't look as good as does from the groomers', unless you have a bathing system, a powerful force dryer, and a professional set of tools, clippers and blades.
I think the haircut he has looks good on him! When I do a "lion" type clip on dogs, I usually just leave a ruff around the neck, down to the shoulders, rather than leaving the hair all the way back over the ribs. That's simply a personal thing. We have hot summers here too, so I clip a lot of Coke-type dogs short like that.
Poodles are OK, but when you hybridize them with other breeds you get something crazy.
Don't have a clue. I am waiting to meet a good exception. Anyone can counter this?
There is some weird, evil genetic synergy that happens when you cross Poodles with other breeds. I don't know why, but it seems to bring out the worst of both breeds, no matter what it is.
I have a few nice 'doodles, but most of them are just plain crazy. Happy and friendly and goofy and waaaaay too much energy, and the owners aren't usually the type to do much training with their dogs, so they are often spoiled brats as well. There are exceptions; I can think of one Labradoodle, a 5 or 6 year old female, who is calm, cooperative and obedient. This family owns two other 'doodles, and those two are nutty as fruitcakes.
On the plus side, I haven't yet met a mean one.