I've worn Vibram FiveFingers for over a year now, just about every day. But I didn't start running in them until recently. They're not kidding when they suggest building up gradually with short runs, when you start out. I thought my walking experience would have strengthened my foot muscles enough for running. I was wrong. Boy were my foot muscles sore the day after a 3 mile run! So, now I'm working up from 1 mile.
I give the Bikilas a very good review thus far. The sole is more durable than most other FiveFinger styles, which is great because after a year of regular wear, I wore a hole through the sole of my first pair, just walking. I expect these to last longer than traditional running shoes, because there's no foam cushion to wear out. Time'll tell on that one.
I probably won't wear them as casual walking shoes, because they are WHITE! and I already find my brown and gray pairs attract enough attention. :)