On a different note, why not take the #2 bus instead of the subway? You save 45 minutes for a nominal price difference and end up in the exact same place (JA Temple).
Indeed, I was taking this particular bus from Pudong to Shanghai Center (Jingan Temple).
You may see my ride at minute 41:44 in my video.
However, I do not like the bus too much - filthy, not reliable.
The Metro is much nicer, so I included a photo here.
You are absolutely right. IMO Jing'an and former Luwan, situated in the very center of Shanghai, are coolest parts of the city.
Yes, I always stay and go out somewhere within the triangle West Nanjing Road - Jingan Temple - Hengshan Road (French Consession).
I dislike the section between People's Square and the Huangpu River.