I was at POP last Feb (used Mears) and we walked right up - it did take us awhile to check in because our CM was an older lady (70ish), dear as could be, but easily confused.
Other times when we had to go down to the front desk we waited once (out of 3 times, needed a brace ordered for my foot - they not only called the pharmacy, it was delivered and charged to my room!).
I know I've read of others waiting a long time - maybe that was during a very busy season? They did tell us that the resort was filled to capacity the weekend we were there!
I am wondering what it will be like December 9th sicne loads of DISers are checking in the same day, before and after!