Well, first of all they're a good load cheaper! Plus they look a lot cooler.
That said, Madsakre from here has a Recto cab, oversized version, and does sound really good. More suited for demolition work than actual music though, but that's the way he likes it.
Palm mutes and chugs sound horrendously brutal on it, and definition is fine too.
But to be honest I prefer the Orange cabs myself. A good deal less low-end, though there is still plenty, mind you. I just know that the times I've had the pleasure of playing through Orange Cabs it has sounded glorious. I don't own one myself, but some backlines I've gigged over have had them, and I always jump and cheer when I see those cabs.