Moved from WP-ShortStat to this plugin. Awesome reports and graphs are present and ready for your viewing pleasure almost immediately.
Posted on the forum about W3 total Cache compatibility and received a response within 24 hours. Plugin author is working on that.
I am getting stats using along side caching, however not sure if the reports are fully correct. Will wait for the new version.
If you have any issues setting this up, post your issue in the forum. One of the best response times I have seen in a long time.