Hello Japan experts!
I will be visiting with a buddy on mid-March. I fly into NRT-Tokyo and plan to stay three days, take the high speed train to Kyoto and stay two nights, then 2 nights in Osaka via the high speed train. Then back to Tokyo HND for my return flight. Based on this trip, is a JR pass recommended? I really want to take the limo bus from NRT to my tokyo hotel-Hyatt regency but realize the JR pass covers the NRT express which will get me there but need to switch stops to get to the Shinjuku station. If the JR pass is not needed, I really don't prefer to get the JR pass .

We plan on just playing it by ear and just do some spontaneous things around those three cities but I have read in the forums that Nara is a trip I can tack on easily. Will the JR pass get me there?

Any advice is appreciated.