I was not impressed with online check in the last of September for SSR and BCV.
SSR - our room was ready at our stated arrival time of 3pm, but we did not get our request for Congress Park area (first time we have not received our request at SSR). Since the packets and keys are already made, the CM seemed much less inclined to check and see if we could change villas, so we didn't. Also, for some reason we were not set up for express check out, and when we were ready to leave I had to call the front desk, and was told we'd have to come down and check out.
BCV - arrived at 3PM and we had stated our arrival would be 2:30. Villa not ready. Got all the way out to the parking lot and received a call that a different room was ready, so we had to go back and get new key cards. We knew we wouldn't get our request on this one, but took it because we were anxious to get to the parks. Got all the way to the room - it was a handicapped villa. Back to the front desk, where the CM apologized that she was not aware it was handicapped. So, we had to wait until 4:30 for our original room and even then we did not get our requests.
Not sure if I'm willing to do the online check in again. I'll have to watch and see what others say before our next trip.