Transit between JW Marriott Hotel Shanghai at Tomorrow Square and Maglev train station?

From Longyang Road Maglev Station to your hotel, you can take subway line 2, and get off at People's Square, Exit 11. The ticket fare is CNY 4 per person. And it takes around 20 mins on the way.
Then walk west along West Nanjing Road around 500 yards. After that, you can see the hotel.

Or you can take a taxi from Longyang Road directly. The cab fare is CNY 50 to 60. And it takes around 10 mins.

You can choose the way you like. :-)