Don't worry, I have. I was bitching every week or so when the audio was out of sync, and after I wrote the CRTC I got an email from a Chorus VP in charge of the channel. He explained some of the problems to me (mostly it was hardware-related, but a few movies were encoded improperly), and he even emailed me when he thought it was fixed (it was).
If MC fixed their horrible website, and got OAR movies from Alliance Atlantis, then I'd be a happy customer. I'm okay with their selection of movies; there always seems to be something I want to record, and it's nice getting the HBO shows. I'm glad Shaw is finally getting MCHD2.