Thunderbird 1.0 poised to dethrone Entourage and Eudora?

The official version 1.0 of Mozilla's Thunderbird e-mail client was released today. While the Mozilla Foundation doesn't expect the same flyaway success as with the Firefox browser, they do expect Thunderbird to be serious competition for commercial products such as Microsoft's Entourage and Qualcomm's Eudora.

The Thunderbird open source e-mail client has been in development since early 2003. It features trainable Bayesian spam filters, a built-in RSS reader, and security features like script and image blocking.

I downloaded 1.0 today and so far am pleased with Thunderbird. I haven't been paying attention since version 0.7, which was too buggy for daily usage so I decided to bag it until the 1.0 release. I'm praying this will be the magic bullet I
need to finally wean myself from Entourage... anybody else using Thunderbird as their main e-mail client?