For my car valeting side line, i only get a small amount of traffic so using Google Analytics is over kill. I have been using the popular WordPress Plugin Wassup.
I really only need to check what keywords people come in on, anything else is a bonus. This is something Wassup does really well. You can show items by referrer from Search Engine, External link or even spider. You can also alter your time line to over 6 months.
Wassup also offers you varying other info such as a users IP address, WordPress username if associated with your blog, time and date they visited and pages viewed.
I've never seen any issues with Wassup, where as I know that VSTATS database can soon grow to a large file size resulting in slow page load times.
Anyway check out my video