I use it all the time #1Hitpoint.
Like you say it's an excellent peice of software and a very small download, about 113kb.
It's really easy to install and you can personalize it by adding all your friends, and then you can see when they are online and what server they are playing on. You can even join the server there and then.
You can add your favourite servers to your "Favourites" list and then join it at a touch of a button.
It shows up every server online and how many players are on each server. It even tells you which servers are using PunkBuster and FF. It has lots of features and filter options.
Like #1Hitpoint says, it's definetly worth a look.....
I'll shut up now before I start sounding like a sales rep working for the company...
Best Regards,
Giggles.