PIA is very good. $40 per year and they don't keep logs of your activity.
It just depends on what you want it for. There's been a couple cases in the news where VPN providers who claimed they didn't keep logs, actually kept logs, and provided them to the FBI when asked. I have a few friends who picked up cheap VPN accounts when all of the ISP privacy news hit a few months ago, and when I asked them why they trusted the $3/month VPN providers over their $30-200/month ISP, all I got was blank stares back....