First - let me qualify this review - I am NOT a doctor and I have NOT been to my doctor for my tendinitis - I know what tendinitis is; besides, my doctor has already seen quite a few of my skate-related injuries over the years and usually quips "There are easier ways to lose weight," or, "You realize you're not 18 anymore, right?" That said, what I can say about these shoes is they feel awesome. They fit my messed up feet that were already weird before I ever started skating (wide forefoot and narrow heel) and provide great support.
I was ready to learn to push mongo but with some light stretching and these shoes, I'm good to go. Even running out down the side of the round wall doesn't hurt like it used to.
Plus side - these are a bargain PLUS you get the benefit of all the technology from a company that makes some of the best running shoes available.