Hi, I wish i could say yes, but it is a No. I have not seen the Aspara show in the museum while I was there. Hope you will figure it out!

I believe we paid $16 each per adult, we were disappointed as there is nothing but statues, statues and more statues. (Royal Palace is fabulous....a much more interesting venue...worth every bit of the entrance fee and we'd recommend to hire a guide too for an extra $10 )

There is not any air conditioning here. However, if you go to Ankor Wat. It is good opportunity to switch on your physical into hot hi-humidity mode. I recommend to bring several bottle of water, folding fan and wet neckerchief.

I do not recall but there is a cloakroom in the museum which states: "Cloakroom facilities are available at the main entrance. Please leave large items and bags here." So not sure if there are lockers for luggage / backpacks but apparently you can safely leave "large items and bags" there.

I believe it is about $5US to get in and you could get thru in about two hours at the most. Tour guides are available at extra cost but not essential- but informative. As it is on the river front there are many clean restaurants including Friends cafe and restaurant which is quite lovely.

1) Traditional Dancing is inside the building near entrance gate in the evening. It's no problem in raining. I recommend this is worth for feeling Cambodia culture. 2) Buddha statues and gardens in outside are difficult to enjoy when heavy raining. You can spend time in the building, But those arts depend on your feeling. You can see a half of comments are opposite opinion. Even for me, Japanese Buddhist, it is different from Japanese Buddha and feel strange a little. We can learn from them but not enjoy. 3) There is no good entertainment in Phunom Penh. You have better spend time by coffee break or massage for raining 2 hours. It will stop and you can enjoy sightseeing. Good luck!

there no a/c in fact it is open air more or less.... depends on the day and how much you like the heat

Most likely, New Year isn't a big holiday here and the businesses that close will only close for 1st of January.