If I can avoid it, don't like anything that attaches to the windshield. When very warm or very cold, they tend to fall off. After trying many, the best was this baby
Vent Car Mount Techmatte® Maggrip Air Vent Magnetic Universal Car Mount Hold | eBay
Also sold on Amazon. Couldn't believe it at first, but it's rock solid. And the company seems to be rock solid, too.
I would like this if it also did wireless charging.