Love this service. I've used it for years on all my sites, great to know if you have a traffic serge before Google Analytics catches up. Amazing UI too. Receives far too little buzz for how great of product it is.
We're in process of pushing it live on TSF now. It has been great to work with in the past.
I appreciated the comments about staying bootstrapped if at all possible. Often, I hear conversation about landing VC funding as the end goal. While this can help develop a product if necessary, that funding will likely be more trouble than it is worth.