I recently got an SA-GG w/ CTS-XHP. Ive used it a BUNCH this last week for standard EDC tasks and it performed great... Then a few days ago I sliced open 30 bags of quickcrete (premixed, just add water, concrete). I'll admit that I was a bit hard on it... really digging into the aggregate. It performed the task admirably and though any kind of nice edge was shot, the "working edge" it did keep was at least adequate. It was a major PITA to get a nice sharp edge back though. I can't say I can notice much difference between it and my S30V Striders. If it was significantly tougher than S30V I'd say it is the bees knees, but nothing I've seen on any charts leads me to believe it is. In normal & hard use, considering sharpening, ect. I don't see any reason whatsoever to run out and buy one because of the steel. The steel is good and the design is excellent. That'd be the reason I WOULD recommend one.