Integrating Pagesense Snippet using GTM: question on tag firing options

Integrating Pagesense Snippet using GTM: question on tag firing options

Hello,
I'm integrating Pagesens on my website using Google Tag Manager.

On GTM every tag as several "Tag firing options":
  1. Unlimited
  2. Once per event -> Fires every time there's an event (i.e. click on a link, page load, form submission)
  3. Once per page -> Fires only once when page is loaded
What is the correct option to use? Is firing the snippet once per page enough?

Thank you