It really seems like the Merrell Glove series is very hit or miss as far as fit goes. I have had the Trail Gloves for close to two months and they are still the most comfortable show I have ever worn. I have also had the Tough Gloves for about a month, and while not quite as comfortable as the Trail's, they are still quite good for me, especially compared to my other brown leather shoes that I wear for work (6 year old Merrell Passports). Living in NE, I haven't yet gotten out on the trail with them, but I have done a number of days where I probably walked 3+ miles in them. They definitely leave my feet sore at the end of a long day, but it is the muscles in my feet that are sore. No hot spots or rubbing anywhere for me. I have worn them barefoot, but most of the time (think NE, where we just got another few inches of snow for April fools day) I have been wearing them with a variety of different thickness smartwools. While the thickness of the sock does effect ground feel, I have been comfortable with everything from thin smartwool crew socks to the thick mountaineer weight socks (actually a pretty nice combination with the Tough Gloves when there is a couple inches of slush). I usually wear a 10 1/2, sometimes and 11 and I got the 11 in these, which at first felt big. Now that I have been wearing them pretty much all the time, my forefoot is more splayed (I believe that is the right word) and I need the extra room in the 11's.
In short, I love these shoes. Incidentally, my wife has both the Pure Gloves and Pace Gloves and also loves them both. She also does not get any hot spots or rubbing anywhere. She wears the Pace Gloves for treadmill runs (short ones, at this point) and to work (as a nurse, i.e. on her feet on hard floors for close to 8 hours). She wears the Pure Gloves at the gym for Zumba class (if you don't know what this is, ask your wife, gf, mother, daughter, sister, etc. One of them will know what it is. Or look it up on YouTube).
It seems like, if your foot is the right shape, then you are lucky. If not, you need to keep looking. That is somewhat unfortunate, since there still is not a lot of readily accessible minimalist shoes on the market.
I am very much looking forward to backpacking in the Trail Gloves, but I have not worn boots while backpacking in 12 years. If the weather was right, I just wore Chacos (I really hope that Merrell has Chaco make a minimalist sandal). Trail runners were my next choice.
If you are interested in a minimalist shoe, make sure that you can try it on and return it if it doesn't fit. Try on the Merrell's, the New Balances, and whatever else you can find. Make sure you don't size it to the current size of your foot (unless you have already been wearing minimalist shoes for awhile), because your foot will probably expand. I hope that some other can have the same experience that my wife and I have had. If anyone is still reading at this point, I apologize for the epistle.