It's always good to use something in addition to Google Analytics, but depends on what you want to accomplish and how much traffic you have. Products like Kissmetrics, Mixpanel, Woopra, and others provide the ability to drill into single user behaviors/actions, rather than just the broad aggregate like in GA. #next_pages_container { width: 5px; hight: 5px; position: absolute; top: -100px; left: -100px; z-index: 2147483647 !important; }
Woopra looks great, but candidly I haven't used it for daily analytics.
What analysis are you interested in doing beyond what's available in GA?