Sherlock has calmed down a bit! But still- shiny!
My main reaction, to be frank, was WHAT NO LESTRADE. Because seriously. You can't take that away and just give us a 12-year-old grumpy chap instead. WHERE'S MY SHINY POLICEMAN?
Also, I'm not sure why we needed to be in Chinatown/have Chinese baddies. I guess it's there in the original stories? I don't think it was BAD, or anything, but that combined with the wholesale change of policefolk made this episode feel unconnected to the last. Do we have any idea how far apart they're supposed to be, for that matter? Long enough that Sherlock has developed a little, anyway! He was more touchy in general this week, and warmer, and more compassionate. Generally rather lovely, actually. Yay boy.
Martin Freeman, incidentally, was born to react to a self-service checkout machine.
...And I'm pretty sure I had more thoughts, but I've been derailed by a Red Dwarf marathon on Dave. Oh well.