We camped 4/18 to 4/24 and had excellent bus service. I was surprised, because we had had longer waits on previous camping trips. We like to take the ferry to MK, ferry to CR then monorails to Epcot, but do sometimes drive to MGM and AK. Our DTD service was great, especially after PI one night, when the GF-WL driver picked up 4 of us who were waiting for FW, and said "no problem, I'll take you there!" Talk about exceeding guest expectations!
We were in the 1500 loop, and the yellow service was excellent in both directions.