I'll put your minds at ease, fellas. I use the stuff and LOVE it. I have two viscosities, the "lite" and the "standard". I use the light most often, and use it on all of my guns. The stuff is fantastic.
It does seem thick once you look at it in the tub, but like Cliff said, you don't need much.
After using the slide glide, I have noticed significantly less wear on my guns. An added bonus is cleaning becomes MUCH easier. The slide-glide seems to trap all the carbon so it all just wipes away, no more scrubbing with brushes. Just wipe off the old lube and put some fresh on the rails and other places that require lubrication.
But remember. A little dab'll do ya.