1. I am fairly familiar with Wilson X2 and XLF.
I was invited to audition the MBL X-Treme at the factory, but my experience with the 101E Mk II (with which I was absolutely enthralled initially, but I found ultimately to be slightly too bright even with tube electronics) suggests that adding another pair of tweeters (with the X-Treme) is not going to improve my brightness issue.
My first "religious" experience of the audio variety was listening to Infinity IRS Vs in 1988 at Lyric Hi-Fi in Manhattan (with Goldmund reference turntable and Jadis JA-200s).
I will be listening to Genesis 1.1s in December.
I have never heard the top Magico, YG, Sonus Faber or Tidal. But the Arrakis is the only dynamic driver speaker for which I would consider divorcing ML.
2. My room is a dedicated space, but not a dedicated room, meaning there is nothing going in the space except the stereo, but the right sidewall is 1/4 open to a large equipment room and the left side wall is 1/4 open to a hallway and 2/3 open to a kitchen. The room is 20' wide, 25' long and 14' high.
3. Can you cook?