Yamaha 600 and 700 stands are pretty much all I use. Every "once in a great while" I'll use something different, for a specialty item. Like my Garrahand tank drum, the Yamaha wouldn't fit their mounting hole, so I used a different brand I had lying around.
I'll gain some weight benefits from going from my Falcon HH stand and Pearl 9 series snare stand to the Yamaha 700 series. Really looking forward to being able to get the 3-hole mount and branch off that way, instead of the clamps I use now. All they do is dimple the PDP800 tubes. Not sure if the same will be true with the Yamaha, but less likely I'll have to use clamps. Now, if MF would just get them in stock, I'd be in good shape.
Regarding the PDP-800 stuff.... If you breakdown/setup frequently, the Yamaha will be a worthwhile upgrade.
If used on a static kit (one that stays put and gets broken-down/set-up once every other year), the PDP800 will perform identically to the Yamaha.
It's the breakdown and setup where you'll experience the benefits of Yamaha's quality. Slippage, stripped wing nuts, broken plastic grommets, finger-pinches on runaway telescopes, etc, are the typical hallmarks of economy hardware.
The Yamaha 700 stuff is just great. I’ve been using nothing but 700 stands for many years now, and a lot of gigs. Never had an issue, and no reason to think I ever will have an issue. Won’t consider anything else at this point.