My DH and I stayed at the Poly in February. It's really beautiful and the food at Kona Cafe (breakfast and dinner) can't be beat! Captain Cook's (counter service meals) could be a little bigger, but we never really ate there except to grab a quick breakfast or snack. My one disappointment was they were doing construction on the Volcano pool while we were there, but I would imagine that is long finished by now.
Magic Kingdom and Epcot are my two favorite parks and being on the monorail line was awesome! You can zip in and out of Magic Kingdom so quickly! You can walk to TTC and hop on the monorail to EPCOT. The location is fantastic!
Have a great trip!!!!