this was done in 2009 and i had my first issue start to surface with it now (2012). one of the nutserts in the roof that it screws into started to come loose and so the rack was making a creaking sound when i would hit big potholes (because it could flex just a bit off the roofline).
i just took the rack off today and i'm going to add more nutserts to better distribute the load. i originally only used the 5 factory mounting points on each side, which are unevenly spaced and left a long un-attached gap. i'm going to add 3, maybe 4 more per side to remedy this.
also there is some rust on the bottom of the rack rails and the the roof-line where they sit together, nothing major, just going to rattle can it with a rust primer first and then the body matched coat.