Personally, I wouldn’t do online check in. At POP, they tried to put us into building 2 miles away from everything despite us sending a request in advance through Touring Plans. We managed to change it to a decent room in a great central location when we checked in at the desk.
BTW, we had room 5134, ground floor standard room looking out onto the lake but really close to the pool, food court and Skyliner. Can recommend it.