We just got back from Paris last week. We spent 5 days at Paris and 4 days at London. We stayed at Le Meridien Montpartness - across from the metro/train station. I would definitely recommend the AirFrance bus to CDG and back. It is easy. It was right across the street from our hotel. My daughter is 7, so I had packed 1 big suite case. The accessiblity when you carrying a suite case isn't very good with Paris Metro. There were lots of stairs to navigate at the Montpartness station.

We bought Museum pass for 5 days, carnet of 10 metro tickets, bought separte RER train ticket to Versailles. There weren't much a line for anything when we were there. A little bit of one at the Lourve. Definitely a crowd at Mona Lisa.

Food wise, we just stopped at cafe when we were hungry. We weren't looking for fancy food; so, it was good for us.