I've done online check in and never received a text. I still had to go to the front desk. Both times my room was ready but I never received the text.
Next trip we land at 8:30 am. I did online check in and my requests are noted as "first available room." (These requests were phoned in by my TA and by the
DVC owner I rented from--split stay) When we arrive I am going to leave my bags with bell services. If I haven't received a text by the time we arrive at the resort I'm going to go to the desk after dropping off our bags. If I receive a text I'm going to go straight to MK after dropping off our bags.