I have done, and liked them. I hung one end of a chain from a rafter in the basement and connected the band to it with a snap-link. I ran 5,3,2-style PTTP training cycles, starting easy and lowering it a link after each workout in which I made all reps with room to spare. Once you get to where you can't hit 5, back up a few links and start again. Just like PTTP.
After a bit, you don't even touch the band at lock-out, and as you progress you get to where more and more of the range of motion has no contact with the band, thus giving less and less stabilization from the band.