Overclocking the kit was a breeze until I hit a wall at about 1500MHz. While 1500MHz isn't a huge increase over 1333MHz, it's still hefty enough to give a decent performance boost. Keeping in mind that this is a kit aimed towards overclockers on a specific budget, it certainly does well. Surprisingly, though, the Reapers did not seem to have very flexible timings. Loosening the timings didn't do much at all for increasing the frequency, and at lower frequencies it was impossible to tighten them.
At under $170.00 USD on a popular online reseller, the OCZ Reaper kit is a great deal. DDR3 RAM was insanely expensive upon release, but as it has become popular, it's taking a more affordable price range. OCZ has done a great job here making a good kit that's also affordable.
The 2x1GB OCZ Reaper HPC PC3-10666 kit performs well, gives a nice OC, and comes at a great price, earning it the OCIA.net Seal of Approval.