The phrase 'how it is used' is correct and can be used in written English. You can use it when you want to explain how you, someone else, or something is using or being used in a particular situation. For example, "The teacher demonstrated how the new software is used and the students followed along.".
The first is in its feature set and how it is used by customers.
Whether the scheme can reach its equity goals depends on how it is used, and by whom.
Remember, its not the weapon that is important but how it is used!
And just look at how it is used.
EU countries give money but do not have sufficient safeguards on how it is used.
A word's meaning can exist entirely in how it is used.
This story was about power: who has it, who doesn't, how it is used.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia