These cabs simply can't be beat. I have ten (yep, 10) of these 4x12 cabinets that I've purchased over the last several years from StoneAge, and I now have four more on the way. I still have every one of them. These cabinets are extremely tight, punchy, clear, composed, and focused, up to insane volumes. My other cabinets collect dust and my StoneAge cabs get used constantly. We also run these cabs in a pro studio environment.
And the icing on the cake is, they look fantastic, every bit as good as they sound. I've used these with both modern and vintage speakers, and it all works great across the board. It is extra cool not just that YOU get to pick the colors and styles, but that you also get to choose the grill cloth, which DOES alter the sound of the cab. StoneAge uses the real genuine marshall issue grill cloth, and it is all very different. The heavy cane or salt n pepper basket weave shaves off some highs and makes the cabs really smooth, very late-'60s. The reissue bluesbreaker pinstripe, checkerboard, and plain black weave are all thinner cloth, so the cab is a little brighter and more aggressive, more 70's or 80's sounding. I have real vintage m cabs and the StoneAge cabs sound every bit as good or better, and hold up better under really high volumes. They are simply a superior build and better materials, yet keep enough of the core vintage styling and components to have the "right" feel and sound.
You will also NEVER see a better packed cabinet, OR get better customer service. In the last 10 shipments, I haven't had a single damaged cabinet. StoneAge packs these things for a nuclear blast. They are totally lined in two or three inches of high density foam which is fully inside an oversized uber heavy duty shipping carton. I've received boxes that were ripped and also poked into nearly 3" all the way in by a sharp object, by the shipper in transit, and yet NO damage to the cab.