Tried it but at the time we had ISA serving as our firewall and there were big problems. Have our own network and web infrastructure, although small, in house... I have bagged QuickDNS for RDNS (C# .NET based) because I could look at the code. Was buggy to start with but just got the new download and it works well now.
btw if you want to take a look at some screens of our reports you are more than welcome. Just sticky me.
One the Analog site there are some very useful config sites (just cut and paste). It will help you keep up with the search keyword break out...very helpful and disincluding the bots and spiders as actual valid clicks. A lot of people include them and its really useless traffic when trying to figure out page views/customer etc. Useful though when tracking how often you are cataloged and by whom.