I just quit using Sellathon, and I'd like something better. I have Google Analytics going but as far as I am concerned, its best feature is that it's free.
My current browser/platform was no longer very compatible with Sellathon, and I was tired of troubles even before that. I like the information it offered, but it would load very slowly for me.
Short answer: I don't have any answers, and I'd like to know what others recommend too.