How do you rate Cortana?

I don't know if it's the quality of the mic or Cortana, but she is not responding to 'Hey Cortana'. And sometimes when I click the mic button in the search box, she doesn't even respond or acknowledge my question.

Also, is there a way to get her search results in Google?

 

Do you have a U.S.setup? Cortana still isn't available in all territories.

 

I have a UK set-up. Cortana has been fully installed and activated, but she doesn't respond often

 

Moved to the Cortana section of the forum

 

Other than "Hey Cortana, what is the weather?", every other thing I ask just gets launched as a Bing search.