I recently installed an MX4 after doing much research on this forum. The look and finish are great. It matches the plastic bed cap very well. My issue was the poor quality control and packaging of the cover. Mine came with a bent side rail and a broken plastic latch cap. The worst part of it was that half the latches were mis-located on the rail and I had to remove and redrill to locate them properly. Some latches had the factory screw threads stripped out, so the screws were just omitted. I think the MX4 is a good design, but BAKflip has serious issues with quality. Oh, and they don't accept returns unless it is uninstalled and in the original packaging.