After living with Acoustats, Quad ESL-63's, and ML-CLS2z for over ten years I finally was able to move in with a dynamic speaker. It wasn't until I heard Avalons that I was able to do so. Everything else, and I mean everything, sounded like a collection of drivers in boxes, albeit nice looking expensive ones. Even highly respected speakers that had rave reviews from Verity, Wilson, Vandersteen couldn't match the cohesiveness, transparency, and level of detail I took for granted with the ESL's.
Avalon had all the qualities of the ESL and enough dynamic expression to make me switch. They made other box speakers I listened to sound disjointed and slow on their feet.
Pair them with tube electronics of commensurate quality and the ability to drive them, careful set-up in a appropriate size room for the model you choose, and they will sing music.