LOVE the ENGL Pro 212. Here's what I had said about it in the MusicPlayers.com review of the 580 pre/850 amp rack rig:
ENGL’s 2x12 Pro horizontal cabinet delivered a big, tight sound with lots of roundness and depth. We found it to be one of the larger sounding 2x12 cabinets that we’ve used, despite its compact size, delivering a sound that had the projection of a 4x12 but with the immediacy of a 2x12. We were also pleased by the sound of the ENGL rig through our Boogie 4x12, but the ENGL cabinet had the advantage of delivering stereo output at the flick of a switch on the rear jack plate.
I currently play through an ENGL Pro 412 and a Mesa/Boogie Recto Standard 212, both have V30s. When extra funds allow, I'm getting the ENGL 212 cab for my ENGL rig because the cabs sound amazing. Boogie cabs are fantastic, but manufacturers really tune their cabs to their own amps, and my Boogie cabs always sound best with Boogie amps, likewise my ENGL rig sounds best with the ENGL cabs.
I also really like that the ENGL 212 cab has huge recessed handles on each side -- makes carrying them much easier than the inadequate rubber strap-like handle on top of the Boogie 212.
Scott