Netflix employee here. I've been at a company that changed vacation policy to unlimited from 20 days [Nvidia] and now at netflix which has the freedom and responsibility culture and unlimited vacation policy quite established in the culture and it's a different experience. During the interview I asked our VP what he thinks of the unlimited vacation policy and his response was along the lines of `When I got back to [far away country] to visit family I can't just go for a week, it takes me 2 days to get there and the rest of the week to recover, and again on the way back, so I take the whole month`. Having been here 2 years now, I can tell you it is quite common to take long vacations at netflix and no one has blinked an eye or tried to make me feel guilty when I take them.

My experience at Nvidia's was more like what you describe, where my manager said that even though the vacation policy was unlimited now, he thought it would be unfair to others if I were to go over 20 days, and it was always a guilt trip taking a few days off.