The Pros for this software are that you can create your own ringtones and avoid paying through the nose for ringtones when you already own the music. The Cons are that you have to pay $29 for AVS, it does not work very well - looks like it doesn't work on Cingular anyway. Another con is that the download crashed my computer. Lastly, why bother downloading software at all when there are excellent web services out there like Phone Sherpa that cost $10 less and have much better features and implementation, not to mention that they work on way more networks.