How stable is 1.3?

Hi,
I’m working on launching a new site and have decided to use WP. The category tag is a must have for me though so I need 1.3. How stable is the current beta? I’ve browsed through this topic and see various issues. Will I be able to get 1.3 up and running and launch a site with it – and is this advisable? I really can’t work with 1.2 as it is…