I have had a pair for a few months now. I have just taken mine off from an entire day of wearing them. I have been running in them lately. Based on the smell, it's time to throw 'em in the washer. Ha ha ha...they make running completely different, but I really like it - after a run with those bad boys, your feet know it!
I spent all day hiking trails and going WAY OFF TRAIL and climbing the better part of thunder mountain in Sedona, AZ with them on my feet + have spent a good deal in my boat with them on - they are great as long as you watch cacti areas carefully! I got nailed with a walking cactus chunk (teddy bear cholla) on the side of my big toe and that was a unique kind and level of pain that I can appreciate.
Today I just went and did some errands in them and went out back to my range shooting with them. Your feet get wet if you step on damp soil and a small bit of dust/dirt (very small only - except for thorns) get through the soles - they are essentially just like going barefoot with a light rubber separation from you and the ground. You feel almost everything - but the pointed rocks and gravel don't bother you a bit.
I like 'em, but they are VERY unique - bizarre or odd really - and have a tendency to spread my toes apart a little - I wouldn't even THINK about taking them in the woods to do a job or go drinking in, but they will help work muscles and joints in your legs and feet that don't get worked very much in traditional running shoes.
Life is short. Eat, Drink & Be Merry!