I have one. It's not like a regular ww. It's thick and "stiff". It's more suited to blotting, if that's your thing. I find that I don't use it much, I just dry with regular ww towels.
I haven't tried Guzzler HD, but have Mothers WW drying towel with foam core in it. I find it harder to work with, and prefer their regular towel.
I have it. I haven't really used any other waffle weave towel being as I'm fairly new to this gig, but I find that when it's saturated it does streak a little. I use the reg ww that came with the package for the wheels.
I really don't like it for drying at all. The only time I have even touched recently was when I was doing a quick QD on my daily after a rain and it was the only clean towel I had with me. It worked well for that, but for the price of it there are deff better towels out there.