Agree with all of the above, EXCEPT for the comments on the Munich Park Hilton. It has recently been completely renovated and is far, far more comfortable and elegant than the City Hilton. Plus, it sits right on the beautiful Englisher Garden and is quiet quiet quiet. Each room has a large balcony and lovely amenities compared to the City Hilton. The executive lounge is open from 7 a.m. to 10 or 11 p.m. and offers a full breakfast, snacks in the afternoon and wine and beer all day long, all complimentary. And it is just a few tram stops from the Hauptbahnhof and the city center, hardly a chore.

By all means, take the Lufthansa shuttle between the airport and the city center. It is fast, clean and comfortable. I took the S1 train coming into town and it was dumpy, dirty and not any faster than the Lufthansa bus. For a few bucks more, the Lufthansa shuttle was fantanstic. It runs every 20 minutes during the day.