I bought these sneakers on sale when I started a new job in a hospital.
I work in a very large hospital and I am literally on my feet for my entire 7 hour shift walking and standing.
I originally picked this style because I heard they helped with back problems plus, the sale price was very appealing.
Not only have I had absolutely no back pain while wearing them, my legs and feet have no aches at the end of the day!
It took me some time to get used to the "roller" sole and running down stairs was frightening but once I got used to them I was absolutely amazed.
I have previously worn walking sneakers, nursing clogs and croc type shoes and none of them gave me the results these did.  I even wore my nursing clogs one day to see if there was a difference and I will never do it again.
These will now be the ONLY shoes I will wear for work and in addition, I wore them for a 17 hour Relay for Life walk for the American Cancer Society and I could have never done it wearing anything else.  I was devestated at the end of the event when they were caked with mud and grass but luckily I was able to clean them up.

For anyone needing comfort and stability I urge you to give them a try.  It will take time to get used to but you will not be disappointed.  They are pricey, so if you can get them on sale do it but even if you can't, they are well worth the price!!