Hey, I've been running in the 3.0v2s for a little over 150 miles now into my summer base. Just consistent easy to moderate running with 6x200 on the minute twice a week. I have never run in the original 3.0s and never run before in any of the frees. My trainer before this was the asics hyperspeed 3.
So far the 3s have been great. They are much heavier than the earlier frees i've been told (about 7 oz compared to 5 i think), but the very flexible forefoot has been great and the overall proportions of the shoe are really nice. They made the shoe upper seamless and so that raw fabric is where a lot of the weight comes from but the sole is pretty uniform without the huge bump on the heel most conventional trainers have and the lockdown is really good because of, what i can only describe as a little outcropping of plastic that stretches from the toe of the shoe over the tips of all your toes. Just holds the shoe tighter to your foot.
I bought the shoes in my exact size and they're a bit loose, not to the point where they're uncomfortable and i actually like them but if you enjoy a more snug fit possibly buy a half size smaller.
You may have to stop every couple miles, also, if you run on the roads to pick out stones as they can get lodged into the shoe bottom in the worst way.
At first I felt the extra bit of impact on the bottoms of my feet (forefoot supinator if you were wondering my strike pattern) and had a little pain my knees and achilles for the first week or so. My plantar fascitis (sp) also really flared up those first couple of weeks. After, though, all that went away and now I couldn't think of running in anything more cushioned.
Definitely a shoe I plan to stick with.