Mike Beanwrote a review of New Balance MT20 Minimus Trail Running Shoe - Men's on August 18, 2011
First things first, these are sized for use without socks. If you want to wear socks with them (really not necessary), go up a half size.
I've been looking for a replacement for the VFFs I ran through (in well over 1000 miles) that would give me the same feel without the toes, and these are pretty close. I was enjoying the Merrell Trail Gloves until I wore through the rubber in about 200 miles. These aren't super-minimal (mostly because of the 4mm drop - everything else is pretty legit) so if that's what you're after, look elsewhere.
The MT20s have a "softer" feel than the Merrells - not sure how to explain it really, it's not a cushy feeling, just less harsh. I've got several runs in these now and I'm pretty happy. They're great for running without socks. I've seen complains about the lack of a rock plate and getting stabbed through the gap in the tread, but my runs in these have been predominantly on paved surfaces. Rubber durability seems good so far, I'll revise this if that changes. I'm looking forward to the Minimus Zero, but will happily train in these until then.