I'm not going to say the Infiniti is the cat's meow, but I've used one off and on on several bows over the last couple years and it is definitely a quality piece of work. Smooth as butter. I've been thinking of putting it on my Moab.
From a personal standpoint I've used or tried about 10 of the most popular drop aways in the last 3 years and I'm not overly impressed with any of them. If you can tune a bow and get fletching clearance they can just introduce another item to move if the cable creeps or the cord slips in the cable.
To each his own, and maybe it's me, but I've always gotten stellar results with a GKF Star Hunter, similar to the NAP 750.