I got the Heresy-IVs back in late November. When I started to go down the path of picking a new speaker, I had another speaker maker point out some of the issues with my room so I planned to treat the room around the same time that I ordered my IVs. The Heresy's came, and I had some of the same experience as @jwl244.
Then I started to treat the room - I added diffusers on the ceiling spaced out between the speakers and the listening position. I added some diffusers to the front wall. I move the carpet. I replaced some flimsy window coverings with thicker, dual cell blinds. I added some art to the walls. Everything changed. I made a few other, small changes, moving some of my better (more neutral) cables back into the core system.
Then, I really spent time positioning them. The difference between when I first put them in to now has been remarkable. I liked them at first but felt really unsettled about them. Now, I just really really like them to the point where I forget they are there and just find myself fascinated by the quality of the music. The ceiling diffusers moved the sound stage up, positioning made it wider and more engaging.
I still have my LS50s - they scratch a different itch. And, like one of the other posters, I ordered a Decware a week or so after the IVs and in a few months will get to play around with that. I find that the IVs have done exceptionally well with the currently playing LTA Z40 (but what wouldn't), the Schiit Ragnarock, and the Rogue Sphinx. The Sphinx and Heresy combo is a little noisy for my taste, though, when nothing is playing.
Music - a little of everything but not so much classical. Nick Cave's new 'Litanies' is playing in the background as I type this, and it sounds magical.
