Been there, have points there, love the place.
Last time we stayed there we got a "No Smoking if you request a non-smoking room, but it is on a smoking floor and it's designation changes at our whim" room when we requested "as high as possible non-smoking. We were also as far away from the center of the hotel as is possible. We actually bragged at our Health Club as to the amount of exercise we got just walking to and from our room.
I digress,
The "Evil Clown Pool" (Luna Del Noche) is quite fun, it has a water slide in the clown. There is lots to do on the boardwalk especially at night after the parks close if you don't want to go to Downtown Disney. DW and I like JellyRolls (but I had a hard time with the cigarette smoke). You can also rent a bicycle for two and ride around the lake.
We also like being within walking distance (15-20 minute walk) of both Epcot and MGM. We like to race the boat to see how much extra time we spent walking than riding, and thinking of the extra calories we could then have.
The rooms are nice, and very well themed. We also like the Kitchenette/full kitchen (depending on which size room you have). You can order bring up your own water, keep leftovers and make pop-tarts for breakfast.
The only other thing I can suggest is to watch Zippy on your in room TV to learn about getting around the parks, Ultimate Park hopper if you are there for less than 5 days, if your stay is longer(or if you are planning another trip inside a calendar year) you might consider an Annual Pass.
I hope this helps, YOU WILL HAVE A WONDERFUL VACATION!!!!!