Nope, not here. With Stock Rom and Siyah Kernel my S3 lasted up to 4/5 days in mostly idle (with Juice Defender, but i don't know, if that thing does any huge difference). Now, with CM9, I'm happy, if I get 2 days with the same scenario (again with Juice Defender).
I love the rom, how fast it is, how it looks. I love, that it doesn't prompt me to install some goddamn OTA Update which doesn't work, because of Siyah Kernel (and for which I couldn't care less). I love it's customizability and all the settings, but the battery life seriously sucks. Too bad CM9 is a dead end and who nows, when CM10 gets polished enough for everyday usage with good battery life.
But I really won't get back to Stock Rom, I really hated the UI and the OTA Updates.