I love these shoes.
I'm on my feet 8 hours every day at work, and these pair works great on my feet and legs.
I felt my calves got worked out after first few days of wearing them. Now after a month, I start feeling effect on my upper legs. Another great thing about these shoes, is my feet feels great after 8 hours on my feet in these.
I ended up wearing them at home too because my feet does not feel right without them.
SO, I ordered another pair last week. And I'm looking more pairs now!!