Going to Kauai next month and have a few Cat 1-5 E Certficiates. i see only the Courtyard fits within the 1-5 category. However, when checking availability for Cat 7 Kaua'i Marriott Resort, I see an option to redeem E-Certficiate plus $50. Does this apply to my Category 1-5 E Certificate or one that is good for a Category 7 hotel?

That being said, should I stay at the Marriott Resort or the Courtyard if I can use my certificates at either?