Yes, I have it. It is a stereo-only SACD. It is also not a hybrid (i.e. no CD layer). I haven't listened to it in years, but I remember it sounding very good. It is an excellent performance, except for Ozawa's sprint through the March of the Souls section.
I really like the M9! I'm not sure if I'd pay the premium to get it again on SACD though. I haven't listened to the M9 in a few years either, but remember my only real disppointment being a lack of power from some of the brass. I LOVE Ozawa's way with M9 though, including the commercial BSO one and the radio-rip of his final BSO concert. I am considering the Japanese DVD or Blu-Ray release of that final BSO concert, but it is probably a little pricey for my blood. I'm spending too much money on tennis these days to spend $70+ on a Blu-Ray disc.