I ordered these boots from Amazon last month and received them two days later. They're the best I've got! (And trust me, I have plenty)
When you first put them on, you'll have to adjust the straps to fit your leg snugly (especially around the toe-area because since the heel is elevated, your feet might slide forward and become uncomfortable--once you adjust them though, they become no problem at all). The platforms themselves seem sturdy and not bound to fall off (I've had these for not too long so I have no say in this). Getting used to them is easy. You'll be hella taller, which is always an amazing feeling.

I don't know how long they will last but in a day, I've worn them for hours with no problems. Just make sure you wear thin long socks underneath or pants tucked in because the zipper rubs against the calf area and become sore after a while. I see no problem in daily wear. You'll get lots of compliments. And be careful not to tell anyone where you got them or else the trend will spread and they won't be ask unique!
Oh yeah, and the smell so freaking delicious once you remove them from their huge shoebox...