Engine Driven Compressor

I was wantting to know if the Engain Driven Compressor is worth it in my truck. i have a full size GMC. i hate the powerd compressors and too long to fill up. so what is a good Engain Driven Compressor?? I found one on www.suicidedoors.com it seems like a deal and worth it. here it is http://www.suicidedoors.com/products/airmanagement/engine-driven-kits/engine-driven-compressors.htm