Phoenix was great when I went up to interview at Mayo. Pretty much everyone is great when you go up to visit. Question though:
If people are waitlisted on Oct 15, are they notified by phone or just email? I know that they call if you get in, but I wasn't sure about waitlisting.
Well, the only way to get the real story would be to call Marcy. All I can tell you is what I recall from last year, and they may or may not do the same thing this year.
I believe that last year it worked like this: First, you had to have been discussed at a committee meeting post-interview to be eligible for an acceptance (basically, "ranked"). Depending on how backed up they are at the time you interview, you could be ranked anywhere from a week or even over a month after your interview (I
think they sent out an email once you had been ranked, but I could be wrong (and they might not have sent out any such emails for the interviewees who interviewed prior to the first acceptances going out)). Then, the next time they select people to accept (which did not necessarily coincide with committee meetings to rank interviewees), and you are not selected, they send out a "hold" email. It's definitely not the same as a waitlist, since you could be accepted at any time they decide to send out more acceptances. I certainly know people who interviewed in September, didn't get in with the first wave in October, but got in in November or December. Basically, you're just as eligible each time they decide to offer more acceptances, so I wouldn't view it as a waitlist.
The waitlist is different. After they've filled the class (usually as of 3/15), they will create an alternate list in mid-March. As people decline their spots in the class they will extend acceptances to alternates. Waitlist (or rather, alternate list) movement can continue as late as mid-June, or theoretically, up until classes start around the third week of July.
Hope the above is not too convoluted. Regardless, take it with a HUGE grain of salt since I have no idea what they're doing this year.