I just returned yesterday from 9 days at Vero.
We were on the top floor of villa building twelve, in 1242 and 1243 (because that's the northernmost building near the campfire area, we had incredible sea views, and consequently spent plenty of evening time outside on our balconys). We had Skin So Soft Bug Guard Plus with us (yes, it's still available, I got it on
Amazon) but my wife and kids didn't like the smell, so they generally didn't put it on. Therefore, we were a good "test case" (Dad used the bug stuff the first few days, the rest of my family never did).
Bottom line: we wouldn't have even known about the "no see ums" if I hadn't read about them here, because
they never bothered us at all.
- We were at the pool to grab a table at "rope drop" (8 am ) almost every day -
no bug issues whatsoever during that early morning period.
- We were outside in the early and late evenings plenty of times, and again,
no bug issues whatsoever.
- Also did campfire twice during the stay, and I didn't see anyone on either evening complaining about the bugs.
Bottom line: the bug thing seems to be very subjective. Maybe the insects are only attracted to certain types of people/skin?

(for what it's worth, my family is relatively fair, wife and kids also have red hair).