@thespeakerdude , Granted the WAF factor is an issue with large ESL. When I first met my wife I had Tympany 3's, the biggest, ugliest speakers ever made. She views the ESLs as large improvement. Most people think they have something to do with the theater and are surprised to learn they are speakers.
I am an old rocker. I dislike wimpy systems. If you know what you are doing and can afford very large Class A amps ESLs will go beyond the pain threshold. The secret is to cross them over to a subwoofer array around 100 Hz. Below 100 Hz the diaphragm has to take large excursions increasing distortion and sucking up headroom. ESLs will make bass but they hate it. ESLs have advantages dynamic speakers can't match. ESL distortion levels are a magnitude lower. They are way more dynamic. Things like snare drum snaps have as much punch as large horns. I am talking about full range line source ESLs (8 feet tall with 8 foot ceilings) not smaller ones.
Some people prefer the miniature image they get with point source speakers. I have never had a point source system make me feel as if I am at a live performance and I use to be in the business. My system does it all the time usually when my wife is not home. The funny thing is if I play a Blue Ray video concert the volume does not bother her at all. Go figure.
What all of us think is purely a matter of our individual experiences. Systems like mine are a rarity and few people have experienced them. When you say ESL people think of Quads, an extremely limited and fragile speaker. Speakers like the old Acoustats and Sound Labs are a totally different story. Roger West has installed large ESL PA systems in theaters. They are extremely hard to damage. You have to run them through with a spear, not kidding. You will fry everything else before you fry these speakers. I can push 400 watt amps into gross distortion and the speakers could care less.
The people who have heard them usually come away with the thought that they are one of the best speakers they have ever heard.