1. It does what it was meant to do 100%, but I suggest extending the app to link to station facilities and street maps to help with finding MTR exits easily, but do it in a resource light way without compromising with simplicity of use.As advertised a offline map of the mtr network, no more, no less, if you want bells and whistles there's others out there that you can download.This is a good application for tourists.
2. Cheers!Very convenient for me.
3. It is very useful.