We had them in a high end apartment in Barbados - nightmare!! We didn't realise what the they were and i still feel awful when i imagine them crawling over (and eating) my 5 month old baby who was sharing my bed.
In hindsight, there were HUGE red flags - tiny spots of blood stain on the sheets for example.
My brother had a phone that had an amazing zoom photo thing and the photo he took of the bedbug camp in the joints of the wooden bed still makes me crawl. We know check every single bed we sleep in.
When we realised what they were, we literally threw everything in to cases and left - it was like the Marie Celeste. When we left the hotel we decamped to at the end of the holiday, we shook every single solitary item over the bath (so we could see if eggs/bugs were in our clothes - there were).
We ordered a chest freezer to be delivered on our day of arrival and every single thing - from a pair of knickers to the car seat to the cases - went in there for 48 hours before coming in to the house to be washed. We found dead bugs in our cases.
I think that there was a major infestation in that apartment, but given the above action, we didn't bring them to our house.
We of course told the hotel that we left about the situation so that they could deal with it if they needed to.
The owners of our original apartment paid for the hotel and some compensation so i didn't leave them an arsehole review. They were genuinely upset and didn't know (they lived in the UK).