The fingerprint reader doesnt always register but 8/10 times ot works. Worst of all, I specifically ordered this because i have a closet that is exactly 39" and this was the exact right fit. Just hope in the next book, Darcy and Tory will evolve and not be whiny and fearful all the time. Overall a great Christmas gift. I put 45lb plates on the bar with it sitting in a squat rack, then pushed very lightly on the plate. Its a great, comfy fit for narrow feet! Overall. The plastic piece on the deluxe most likely does not for the product and will most likely fall off. The chrome is lovely. These beads are beautiful but really frustrating.