Do they use any artificial fragrances in the guest rooms? (Some hotels in the area have/use tropical scented fragrances in each room and those are a migraine trigger me.)

No

not that I am aware of

No heavy smell in our villa was very clean .

Not that I noticed everything was super clean!!

No. Very clean and fragrance free

No. I didn't smell anything.

No they do not use anything that I could smell.

No they didn't

They didn't in my room. You could ask them not to when making reservations.