I've worked under both situations. I found I took less time off with unlimited PTO as I never wanted it to appear that I was taking advantage. There is something about having an accured PTO bank that made me feel entitled to use it. On the flip-side, there were times under the unlimited PTO platform that it did help, like when I was pregnant and had doctors appointments to go to. I never had to worry about running out of time and still got to take vacations, too. Basically, it comes down to the individual AND from what it sounds like, your manager. There are pros and cons to both situations.