Open Baffle Experience

Much has been said about open baffles, including an epic website by the late, great Dr. Linkwitz but I've only heard them really once, playing absolutely garbage music (thanks Pure Audio!) at a hotel.

I'm talking here about dynamic drivers in single baffles without enclosures, not ESLs or Magneplanar type systems.

I'm curious who has had them, and who kept them or went back to "conventional" boxes?

I'm not really looking to buy speakers, but I did start thinking about this because of a kit over at Madisound made with high quality drivers.