a solid tool at an attractive price.

More for the handy everyman than the fine furniture maker, these chisels nonetheless merit recommendation because of their utility and very reasonable pricing. The blades cut through red oak for a door jamb installation with no noticeable wear. The range of sizes only adds to the overall value^M
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Even if you have a top flight set of chisels, the Irwins would be worthwhile for use in more mundane jobs.

I may never get these flat!

Every chisel in this price range will probably take some work but these are taking a lot more than I bargained for. I've lapped and honed the backs of these chisels for at least two hours trying to get them flat. I can live with them now but there are still several spots on all four of them that I didn't get true; The worst spot on the 1" was right on the tip. Based on Marples pre-Irwin reputation, I'm hoping these chisels will redeem themselves enough with use to justify the price, but they definitely cost more than I was expecting. If you equate your time to money, add at least two hours worth to the price listed. ^M
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Edit to add: After posting that review I cut a small notch in some plastic with the 1/4" using light taps from a wooden mallet - Believe it or not, it chipped. Back to the stone...

Excellent Chisel for the money

I have owned a set of these for about 2 years now and haven't even needed to sharpen them. I have used them for a number of strike and shave operations and they are holding the factory edge amazingly well. I would highly suggest getting a set.