Ok the MBT shoe is freaky looking.  I admit it.  But *wow* what an amazing shoe!

I have 3 problems when I walk:
1) shin splints
2) lower back
3) super klutz I fall, trip etc.

I have had my MBT shoes for a month now.  I walk about 3 miles 3 times a week with the MBT shoes.  With the MBT shoes I no longer have had problems with my shin splints.  When I walk, my  lower back hasn't hurt, and although there is no heel I haven't fallen once - yet.  At first it was weird to have that rocking sensation but I don't even notice it anymore.

I have definitely noticed that my calf muscles and leg muscles have been worked I can feel it! so don't wear them a lot in the beginning esp if you are out of shape or haven't used those muscles.

The MBT's are super comfortable.  They are super cushy and feel great.  I really love mine.

However there are a few things to consider when you buy them - you need to buy a larger size.  I normally wear a 36/37 and I bought a 37 2/3.  Also they are very expensive so they are an investment.  But I do think they are worth it.  I haven't met anyone else who owns them so I don't know what other people think but I am really happy to have bought them.