They were very easy to install. And the bags are of very good quality. I chose the Gen 1 cordless compressor. The only thing I didn't like was the lack of a scale. You set the pressure you want, but it's wrong. I set it to 50 pounds but my tire pressure gauge reads 45 pounds. 5 pounds doesn't matter. That's why I gave 5 stars. Overall, the system works well and is very easy to install. He drove an '06 F250 Powerstroke 4x4.