I agree, I was super skeptical when I started with my current employer due to this policy. I cynically assumed it was intended to somehow deter me from taking any vacation. Then I took quite a bit of vacation and got absolutely no pushback.

I think that our relationship with vacation has to change to one where we consider it a vital part of being a professional. When that attitude shifted for me, I became a pretty big fan of the unlimited vacation policy.

I figure that the worst case scenario, I'll get denied the vacation and I can choose if I want to move on or stay..no harm done.

I agree, in a similar situation. However I think it takes someone who is confident enough to take those days off. I'm sure there are people in both of our organizations who would take more if someone told them they have X numbers of days to take before they lose them.

I'm talking about the average/majority case. I also have a colleague who managed to talk his way (after completing a major re-architecture of our product) into a 3 month paid vacation. He gave his notice 2 weeks after coming back from that.

So - if you are a high performing individual, you can make it work for you, but for a lot of people, unlimited days morphs into no days.

But - I think your kicker really captures the impact of this policy "t's just a matter of having a company that actually wants reasonable work-life balance for their employees."

15 days vacation isn't unheard of in the tech world.

Sure. My point is, I would have saved much more days because "what if I wanted to take a week in August before my days roll over?" Maybe that's just my personality type.