CSR wins for my family. We've stayed at all the other mod's and absolutely book CSR whenever it is available. It has a fantastic food court, a great pool, the grounds are beautiful and the bus system is probably the most reliable we've ever encountered. Walking to the DHS or Epcot isn't all that great when the temperatures reach the 90's and the humidity is really high.
If you are planning to go to US, I'd check into renting a car for those two days only. You really don't need one for WDW and, while eating at WDW can be expensive, there are so many places to choose from that we've enver really felt the need to go off property, we just eat a small breakfast and then a really large lunch then a small snack for dinner, or do a breakfast buffet around 10:30, skip lunch and do dinner. If you plan it right, it works well.