It is amazing how fast they've overtaken the city. They seemed to be everywhere and ridden by huge numbers of people.
I'm a pretty frequent Boris Bike user in London (500 miles a year on the rental bikes) and thought the dockless GPS system was a great improvement on London's docking stations.
We cycled to a brewery and left the bikes outside the front door which was much more convenient than having to look for a cycle hire rack. There's absolutely no need to plan your route around fixed infrastructure which is very liberating.
I strongly disagree, with one RMB in China you can only get a lighter (cheap one) in 7-11, I can't really think of anything else for that price.
Other points I use to come up with my recommendation that outside Beijing and Shanghai you treat 1 USD to be equal to 1 to 2 RMB.
Bus Ride - $2, RMB 1-3 Quick lunch - $8-15, RMB 10-20 Beer at a basic bar - $6-8, RMB 8-12 Beer at store: $1-2, RMB 2-4
Of course this is for domestic products in both countries. Imports cost more and follow exchange rate. For example, in China imports are usually exchange price + 25% import tax (electronics, cars).
This is less common in the US. I wonder if Americans will tolerate having bikes everywhere, like the Chinese or the Dutch do.
Just in case there's anyone still harboring the illusion that the auto/petroleum industry isn't thoroughly dominant in US culture.