Blue switches are not a good choice for office use if the user shares a space with others or has video meetings. I find typing on a red switch to be just as fast and comfortable as on a blue switch. Brown is a good in-between.
Check out the Kechron C2 or Logitech G413.
I recommend getting a red switch from a retailer you know has good returns and see if she likes it as much as yours. Or maybe go to a best buy together and have her try out a couple different switches.