Any experience with the JBL 4430 Pro Monitors?

Any opinions or experience with these huge JBL's? They feature a unique horn tweeter and weight in at 127 lbs. each!
The baboons butt is a classic. These are usually soffit mounted and you may suffer slightly from edge diffraction issues if you decide not to instal them in a wall. Mounted in a wall you have a world class sound from a world class speaker - a sound that studios installed in main control rooms in order to impress clients. If I recall these are a successor to the famous 4350 that The Who helped make famous...