Very firm massage
I had to try this a few times before reviewing.  I have major problems in one of my feet, and it hurts all the time.  This massager is just on the edge of hurting, BUT after using it, my feet feel great for hours.  If you can't stand a very firm massage, this is not for you.  To get the right pressure you really need to move your feet around in it to get where it's comfortable.  It does have different settings, but no real way to adjust the squeezing pressure.
Rating: 4 stars