I was having cripplingly slow load times and complete non-page loads (while running Total Cache, I might add).
I ran a test on pingdom (http://tools.pingdom.com/fpt/#!/B9XxkRSLZ/http://startech1.org/) and was having a 30s load time on the home page. After disabling SlimStat, I'm getting 3s (http://tools.pingdom.com/fpt/#!/MWf7umeUn/http://startech1.org/).
Is anyone else experiencing this issue? It's not a new issue, but I finally had time to dig into it and find the root. If slow downs to that degree are the price of decent stats, they're not even close to worth it.