We were on Spectrum's first 7 day cruise out of Shanghai. All announcements were made in English, though I can't remember if they did Chinese first. Not that it matters though.
Expect some things to be a bit different than on other RCL cruises. On our cruise, there were lots of Chinese family groups. I'd say probably 90 percent Chinese guests, rest mostly US and some Europeans.
MDR menu was mostly geared to Chinese tastes, the english menu strangely was only a laminated paper with minimal text, mostly pictures. The food there wasn't very good in my opinion and the meal very rushed, it seems that the Chinese passengers didn't want to linger at dinner. Everything was brought out very quickly and we were done in less than an hour.
Windjammer was good though and thankfully, staying in Silver Suites, we had access to the Silver Dining room, which is the Solarium Grill on Non-Asia cruises. While they had a fixed menu all week, with the buffet there was lots of differnt things to try.
Also, after dinner, the ship felt really empty, it seems the Chinese guests went to sleep early.
Lots of smokers and the pool deck smelled of smoke most of the time. As the Solarium pool was reserved for Silver and Gold suite guests, we could take refuge there 🙂