Not them in particular but I'm currently testing Chartbeat and Reinvigorate (both Woopra competitors it seems) on my blog until I decide which one I like more. To be frank I don't like either. One is only about what is happening now (chartbeat) and doesn't tell you things like how many visitors you got in the last month. Reinvigorate tells you those things but all the data is spread out over tons of pages and you have to click around several times to get what you're looking for. I used to use Mint for all this (but not as realtime... you need to update it to see new numbers) but it needed its own database and I wanted to go with a much more simple setup on my jekyll site. No sql anymore!

chartbeat screenshot: http://dl.dropbox.com/u/186198/Screenshots/o0-4.png

reinvigorate screenshot: http://dl.dropbox.com/u/186198/Screenshots/mrva.png