I tried the skechers shape ups and hated them. I tried the MBT and hated them as well. I didn't like the feeling of unsteadiness and like I was about to topple over or throw my back out.
I COULD feel tension in my legs with these other two brands and I don't with the new balance.
I cannot attest to the fact they are doing what they claim, but they are wonderful walking shoes nonetheless.
I had orthotics in my reeboks, but these were comfortable right away, and continues to give amazing support to the heels.
They DO run slender. I got size 9B. I have medium-narrow feet (the kind that your heel never stays down in shoes)and my heel actually doesn't pop up in these shoes!  They are snug, so I would consider a wider size unless you have narrow feet like I do.
I wish these were still made in the USA though. Made in China.