I like Hertz points. Indeed they are one of the reasons I keep my rentals going their way, even though I don't rent that often. The pros to me are that I think there is more value in them in general vs the token amount of airline miles you get. If you are interested in having free rental car days, I think it's a no-brainer. The cons are that they expire, no matter what your activity, after two years. You can request your award as a paper certificate to effectively gain a year, but still, if you're trying to save them up this is a pain.