We had a wonderful time staying for a week at King Triton's Palace. It's a terrific house for family gatherings, and even better equipped than we were expecting. I think everyone in our party was impressed. If you have young kids, there is no better place to stay - children's books, toys, movies, games, equipment (strollers, high chairs, booster seats, kid's dinnerware, etc.). We were thoroughly impressed by the house's ammenities - even better than the listing suggests. It was so much nicer staying at this house over any hotel.
It's convenient to all the Disney parks - no more than 15 minutes to the Magic Kingdom transit area, and even less to Epcot, Disney Studios, and Animal Kingdom. It's very convenient to a grocery store (only a couple minute drive) and many restaurants to choose from.
Our group included 9 adults and 4 children under 5 years old. The house was spacious, and we didn't feel crowded at all.
My 5 year old daughter has already informed us that the next time we go to Disney we will need to stay in that house again, and my 2 year old usually is excited to be home after a trip, but was screaming when we walked into our house because he wanted to go the the other house instead.