Based on other reviews here I was concerned that the fit of the Moab 2 Ventilator shoes would be worse than the prior version.  I was very pleasantly surprised that this was not the case.  I find the Moab 2's to be better out of the box than the Moab version.  My last pair of Moabs left me with blisters until after a very long break in period.  They were tight at the top and the blisters were on the outside of my right heel.  The new Moab 2's have been extremely comfortable immediately. I have "put on" about 15 miles so far of quite hilly street walking and find these shoes very comfortable and I have had no issues with either blisters or tightness.  I actually like the change in the lacing pattern as it fits the top of my foot better than the predecessor version.  I have had no issues with heel looseness at all.  I haven't noticed any increase in arch support as some have noted, but am happy with the stability the shoes provide.

For background, I have been wearing Moabs for many years starting with the regular ones and shifting to the ventilated models over the past three or four years.