Ok, so I won't give you a long review, this is my second pair of Merrell series shoes.  I picked this model because of its feature for being windproof.  So I am using these as my winter running shoes.  So far they have repelled the shallow water puddles also; I avoid the deeper ones.  These have shoes fit true to my standard shoe size, I like the natural wide toe base and yet be quite snug around the foot to limit slipping.  A word of caution for those looking to change to these, I will only echo what many other websites and people have said.  If these shoes are your first barefoot experience, give them about 3-4 weeks for you feet to get used to how they will move with them and then gradually build up your running distance.  I am currently running 6-7 miles with zero issues in my back.  Lower back pain was something that would normally limit and slow down my pace with standard running shoes of different "arch" support; but now I am just getting general soreness in the knees and hips from trying to build new muscles.  For people that have chronic LBP, please try walking around barefoot and allow your body to fix the alignment issues you might have in your body.  Alignment starts in the feet, then ankles, then knees, then hips, then your back; but it all starts in your feet.  I will continue to purchase this brand of shoe.  I use my old merrells right now for lounging around and running errands.