I've had a week-long vacation planned for almost a year now that is coming up later this month. I also recently found out that my entire immediate family, who are all spread across the country, have a week period in February where we would all be able to get together for the first time in years. So I am taking another 8 day vacation three weeks after my first one. I don't think that would be possible without unlimited PTO.
I think it really depends on the company. I am sure the stories are true that companies use unlimited as a way to guilt people into not taking vacation, but it sounds like you found a place where that's not the case. As long as the company culture is there, unlimited PTO is definitely a nice perk to have.