Questions on getting to Jiuzhaiguo

Very nice of Jason and Cindy for taking time to reply to those posted questions.

My friends and I are planning to visit Jiuzhaiguo in June too. We are planning to set off from Chongqing.

My question are:-
1) Should I join a package tour from Chongqing or F&E
2) If I were to choose F&E is it difficult getting around and how about getting rooms
3) What is the minimum days to cover all must see place of interest
4) Which are the recommended hotels for consideration (Must be clean and comfortable)

Thank you