I LOVE, LOVE, LOVE the Dolphin (see my sig) but the last time we stayed there was Christmas 2005. We have stayed there aabout 4-5 times and it has always been perfect . No mold, no bugs. A very fun, festive atmosphere with an unbeatable location if you love Epcot or MGM.
The sunset over the water will take your breath away, and you can take the boat to Epcot and MGM and enjoy the Boardwalk ambience. Don't forget to grab a slice of pizza and a glass of beer waterfront on the Boardwalk, then check out all the menus as you stroll waterfront.