Sixt

The overall rental was a very smooth process. Laura checked us in and charmed all the way. We rented a little car, no surprise charges and no surprise scams upon return.
This was my first Sixt experience, and if they are all like this, it won’t be my last.

After reading horror stories about hidden fees and shady practices by rental car companies, I wanted to detail my tremendously positive experience with Sixt.
First — key info about insurance. As of this writing it is mandatory to purchase Third Party Liability insurance in Mexico. This is not typically covered for visitors (I’m a US citizen); I confirmed with both my auto insurance & CC that I had no coverage in this regard. MOST car rental companies fail to mention this when quoting absurdly low rates. Sixt DOES add it in their quotes. Optional is any other coverage. Check with your CC as there is a good chance that the priciest of all and probably a good idea — Loss Damage Waiver — is already covered if you simply pay with your CC.
The rental experience was very smooth. They picked us up from the airport terminal and transported us a few minutes to their slightly off-​site location (you could walk if not for the highly indirect path and uncomfortably muggy weather). The folks at the office were incredibly helpful and friendly. They explained everything (both about the car & rental conditions), confirmed the online price, and even filled in the sheet of paper marking damages while walking us through to ensure we did not see any other dents. Note that they do need to put a MX$ 20K (~US$ 1170) hold.
The car itself ran really well. We went with the cheapo «CCAR» class which was literally the simplest car I’ve ever driven — it didn’t even have power locks, a radio, or even a clock! However, everything it did have (fortunately, including A/​C) worked tremendously well.
In the end, this experience beat many of my US experiences. I ended up choosing Sixt over all the «normal» US chains you find and also another local company I read about which was highly rated in PV but quite a bit pricier (they must include a lot of insurance). We ended up renting for 9 days and had no problems with Sixt. I highly recommend them and will surely use them again the next time I’m in Mexico.

I did a little bit of research on where to rent a car in PV and could only find reveiws detailing how absolutely horrendous their rental experience had been.
I came across Sixt which had no reviews at all and thought I’d take a chance. So glad I did. Natalie was so helpful and made the experience very easy and simple.
We ended up renting from her again and took her recommendations to check out San Sebastian.
She’s the best!