Hi,
If and when my entire family goes, we need to rent 2 rooms, and on those trips, we always stay at the ASMovies. My family loves it.
The preferred buildings are Toy Story, Fantasia and Dalmatians. We have always requested (and it has always been honored) the Toy Story buildings, mainly for our youngest... it's his favorite movie, and it is also the quietest of the preferred locations. (The rooms facing the main pool, located in the Fantasia buildings would be subject to "pool noise" and traffic from the Love Bug guest.)
We have visited during busy and non-busy times and have never had any problems... check in/out was quick and efficient, no noisy neighbors, pleasant CM's, rooms were clean, always a table available at the food court. The Movies do usually share buses with Music and Sports but we've never experienced any issues concerning this.
My family feels at home here, and whenever I mention staying elsewhere on property, I always get a moan and a groan from 1 or 2, saying they would rather stay at ASMO. I'm not sure why this is... since some of the other resorts (Mods and Deluxe) offer more in terms of views, pools, location, etc., and we have enjoyed these, as well. (For me, I love looking across the water from the Beach Club and seeing the Boardwalk all lit up at night.) Perhaps it's just the "Disney kid" in all of us, and we liked to be surrounded by the characters we know and love.