Howdy.
I purchased Artisteer yesterday. Tested it for several days prior.
Very happy with it personally and have created several nice looking, functional Wordpress themes with it.
Because I have a number of Wordpress sites of my own and several I look after for friends, it's a worthwhile investment for me.
Furthermore, I haven't been that happy with the latest batch of freely available WP 2.7 themes, and lack the skills to create my own WP Themes from scratch.
But using Artisteer I've been busy creating a batch of new themes which are just the way I like them.
Happy New Year,
PRODOS