A couple days ago, during the course of a phone call on the morning of my arrival day, I was told that I had already been upgraded to a Regency Club room and preassigned to one with a very good view. However, when I checked in at the front desk upon arrival, I asked and was able to get an even better upgrade, to a regular one-bedroom suite. I'm sure this would not have happened if I had done the web checkin, although I assume that I would have been given the originally preassigned room which still would have been a nice upgrade.