Needs a VPN if you're in China. Some questionable UI and design choices, though the fundamentals work well for the most part. If you want to do anything remotely interesting then you have to pay, of course. And the subscription fees are absolutely extortionate. One month is the same price as a month of Netflix and a year is £47. A year of MS Office 365 with all of its functionality is £60... Let that sink in. I don't understand why, for relatively little, this app costs so much. Greed, I assume.