I think to say that Feedburner provide stats for your feeds is to downplay it a bit. They provide much more than that. I have been using Feedburner for some time now. Among other things they can do is to convert your feed into a bit of code to place in your web pages in either plain text or HTML format. I find this useful for placing forum topics, etc. on other pages on my site. They can also produce a "browser friendly" feed which takes users to a readable page, with details of how to use the feed, etc. when they click on the orange XML orange button, instead of a page of code. They provide the buttons to place on your pages to promote the feed and also have quite a good support forum. They also have measures in place to provide continuity for your subscribers if you decide to stop using their services. They're also free. But there are some "premium" services (mainly more detailed stats). Overall I've had no problem with them.