I bought these boards for my 2011 Sierra and I would definitely reccomend them- they really dress up the look of the truck and give it some sex appeal. Installation wasn't all that hard, it just took a long time (about 1.5 hours per side). I had to use an impact wrench to get my body mount bolts out even though I know I shouldn't have, and then there was a lot of drilling and bolting required. Would have been easier wiith a second person. And it is a HUGE help to have ramps or a lift.Now that they are on the truck, there are two things that i don't like, but they just look so damn good. First of all, my Sierra seems so much lower to the ground- I lost the ability to go over high curbs, might get a front leveling kit or lift kit to fix this. Also, while there is weather seal down the top of the board, there is no seal where the mudflap meets the board, so muddly water always drips down the mudflap and onto the board leaving dried spots of muddy crud on the front...