So about the actual use: As long as you realize that you are cuffing yourself to a pillow, this works great. It is a pillow - plain and simple. If your "prisoner" isn't resting their weight on the Wedge, they can just take off and run (the boyfriend did a couple times thinking he was cute.) However, they won't get very far because, unless you have the extenders on, the victim can't actually can't uncuff themselves from the Wedge unless they bend into epic-awkward positions. It requires using like a leg and a thigh. The pillow just moves with their attempts to get freed, so they actually can't. (I'm sure this would be easily if the cuffs were on the ankles not the wrists.) The victim can easily escape if the extenders or connector piece is used. The set held up amazingly to some pretty rough use, and it looks just like it did when we first got it. I really don't have many complains about the set - it does exactly like it advertises, and you won't be disappointed as long as you remember that you *are* cuffing your partner to a pillow. To alleviate this problem, make sure someone has their weight resting on the pillow.
The Position Guide included does include some positions for the Wedge with the Black Label attachment, but it isn't many - just five. It also includes positions for the Wedge and Wedge/Ramp combo, though, so if you get the Ramp conversion set, you'll be good to go. Basically, it recommends doing missionary with the hips elevated and the (for the sake of easy example) woman's wrists in the cuffs. We also did it with the guy's wrists in the cuffs (with the extenders), but since his weight was on his hands, where in the world would he be going anyway? On a from-behind position, the woman's wrists can be put into the cuffs, but it may cause some strain and pressure on the head (which is now supporting the weight), unless you use the extenders to give her some room to make herself comfortable. You could possibly using the cuffs on the man in this position to give it a sort of being "forced into having sex" type of feeling, but he won't be able to get as much leverage if he can't use his hands.
If you choose to (and this is a good one!), the cuffs can be used without the wedge and just placed on both of the woman's ankles and, using the extender, you can choose to place them at a comfortable place to keep them up in the air for g-spot pleasure with the hips elevated. If the Wedge is being used as a head-pillow for girl-on-top, the guy can have his hands restrained up by his head. Overall, the positions this adds can seem like only a "few", but if you get creative (and that's half the fun!), there are tons to be had! Just remember that the cuffs don't *have* to be used while attached to the Wedge, and that the connectors and extenders add a huge variety of positions possible.