I love the ride of my Velofles Pave's ($35 at Probikekit -- when they have them in stock). However, last Friday while I was about 5 miles into my commute, I put a 1/4" long gash all the way through the back tire when I hit something sharp and flatted on the MUP (I was riding my weekend-warrior road bike -- not my normal commuter). Apparently, they are more fragile than I was lead to believe.
That being said, I've ridden 35 miles on it since then, and the gash has not increased in size. I wonder if the 300tpi casing has something to do with it. It's possible that a cheaper tire would have ruptured completely, and I would have been walking back home.
I ride with Conti Ultra Gatorskins on my regular commuter. Not as supple (170tpi) as the Pave's, but they give me peace-of-mind. Probikekit
has them on sale for around $24 right now.
In my opinion, the Veloflex Pave's are more of a weekend indulgence (they are frickin' smooth!), and not really suited for everyday riding.