I Just signed up for Skubana a few weeks ago. But so far it has been absolutely outstanding! Truly and great tool and dashboard. It makes it super easy to see all my metrics and data for my biz in one place.
They've done an outstanding job with the site and user experience as well. The only negative thing I could say about the service is that it's a bit pricey. I would love to see it about 25% lower--it would be far more attractive to many sellers.
I'll try and update later as I gain more experience, but so far it's been a fantastic tool and I plan to keep using it!