Ghoeper, No, I have not heard the 20/20 or else I would have mentioned a direct comparison; I tried to be careful not to mislead on that aspect. I surmise that there is quite a difference in sound since the "transition" driver is eliminated, and a second true woofer added in its place. Bill made quite a point of the advancement of the 7" silver-graphite drivers over the Kevlar. The soft dome in the 20/20, which always caused Bill grief in its difficulty to adjust and integrate is totally removed, and an absolutely stunning sounding (IMO) mid planar element added. The Neo-ribbon tweeter is superb in delicacy. Because of these things I think the presentation would be quite elevated over the 20/20.
The second half of the review is really the marrow of the matter, with mention of the electronics paired with them. I think most audiophiles in the hunt for speakers will find that the most helpful aspect of the review.
The first part of the review is concerning design and the second part will delve into the listening experience. I put quite a bit into description of the sound in the article, so you should get a good feel for it.
What speakers are you using now? Impossible to say what your experience would be, unless I know what speakers you now have. Then I can most likely let you know what to expect if you change.