I will likely be declining because I am finishing my undergrad at Guelph right now and ready for a change of scenery. The university and city have been amazing though, I really enjoyed it here! I agree, it is hard to find personal experience about the program online.
Also just got my Queen's acceptance. I didn't expect to hear back from them this early. Deadline to accept is April 1st so hopefully will hear back from some others before then!
I applied to Mac MPH and status is still Under Review. I've also got a couple of the same e-mails. Have not seen anybody say they were accepted to McMaster yet.