Devilbiss is a good name, popular with the pros. Go with the finishline. My friend has a campbell-hausfeld or whatever and it is a worthless piece of shit. Actually I think we ended up taking it to the range and shooting it. I have one of their air rachets though, and it still works like new after like 8 years. I have the sams club kit but I haven't used it yet so I can't report. It seems to be of good quality. I can't comment on CP but like anything else, you get what you pay for.