After a half marathon on pavement, multiple trail runs in everything from wet and muddy to dry as a bone, the verdict is in for us. These shoes are AWESOME! They are great for being around town but are also true to their clam at being fairly waterproof. The previous shoes my girlfriend had used to rub and give her hotspots if we were running in the rain or mud but the Merrell's haven't done that. The lining works great with or without socks and the Vibram sole really does prevent bruising.
The only "improvement" would be a little more durability in the seam between the rubber toe and the actual shoe. It's not bad, but after a few stubbed toes in rocky terrain, we noticed that it's starting to come apart on the right foot.
We've had these shoes about a year and they are fantastic all around.
Despite the lining, they do start to smell pretty terrible after a few good runs but they are easy to wash and dry fast.