I hated Pop period, it was loud, crowded, obnoxiouz tacky themed, and poor service of all the Values we stayed at.... but I would strongly suggest paying the extra $50 for the preferred room, the place is huge, and it's a long walk to the food court & busses - even from a preferred room.
Tip- we were in the 60's building just past the Hippy Dippy Pool, infront of the kiddy pool, near Baloo & Mowglie, on the first floor, was a great spot to be in, because even though you're in a preferred and still close to everything, we were far enough away from the main pool that we didn't get as much of the noise
( I still won't go back to Pop though!)