The computer seems to have had some problems on March 1 -- I didn't qualify based on stays last year (had 9), but did qualify based on Amex spending, and then this year already have 20 stays so far, so I should have been Gold automatically. Had to call to get bumped back up before checking in last night for another stay (new job, more travel). Not a big deal, they were very friendly about it.
Hoping my upcoming Platinum transition is automatic, but if not, I'm not worried about getting it taken care of easily.