I've been pretty happy for the past 3 months using AirVPN. It's one of the top-rated VPN services out there. I use it mostly when I'm traveling at hotels and such or when I'm using public wifi in certain places but it does come in handy at home when torrenting something I can't find on Netflix or Amazon Prime.
My trial there ends in 2 days and I am pretty sure I'll renew. Speeds are incredibly fast and the choices of VPN locations is great. If you want to check them out, I highly recommend that you connect using their client. It's got a lot more features and it has a Network Lock feature that makes sure you aren't exposed in the rare event that the VPN kicks you off.
There's a handy little chart made by That One Privacy Guy (from reddit) about VPN services and how they compare to each other.