I was wondering if anyone has any experience with the bestop tonneau covers?

I have a 2010 F-150 scab and I'm looking for a cheaply priced cover for the bed. I'd like to have a topper but I haven't found one yet so I figured for about $150, I could get a bestop as 4wheelparts has them for $197 with a $50 mail in rebate. I figure for roughly $150 I probably couldn't beat the price for anything else.

This is the ziprail model
Tops and Accessories for Jeep & GM, Ford, Dodge Trucks by Bestop