I got these at the massively reduced price of around twenty two squid, which I am pleased with, but I have found that they slow down my walking pace - though that may not be a bad thing, as I suppose it means that they are making me walk properly.
BUT, I started getting awful aches at the sides of my breasts, which I initially put down to my underwired bras, but the pain got so bad that I ended up having to go to the doctors. After a full exam and after he checked to make sure I didn't have any bruising to my ribs, he did ask if I'd changed shoes recently...and all clicked.
Two weeks on, the ache has eased (it was so bad that I was in pain when turning to sleep on my side), but my upper glutes are the bits that now hurt - which again, probably means that they're now getting a workout. And that's with my wearing them for roughly 40 mins a day!