So I am bumping this old thread to say these wipers are the best. I bought them in July of 2007. About 3-4 months ago the drivers side wiper started leaving streaks, the passenger side still works great. TWO years these things lasted. Since the passenger side still works fine I'm just getting an insert, but the drivers side I got a whole new wiper because the current one is starting to rust a little.
I put them on my mom's car a few months after mine. Hers are still working great, but the drivers side has the same rust issue as mine so I got her a replacement blade for the driver and insert for the passenger.
I still can't believe it, I didn't think they were that old until I checked the receipt.