The Netflix inclusion is brilliant and working well.
I had a similar problem as listed below with some feeds including Apple movie trailers and Comedy Central playing audio but no video. After restarting the program a few times, it seems to be resolved for now.
Networked hard drive shares are working well, with boxee automatically picking up cover art for divx and other .avi movies.
Still need Hulu queue access.
The biggest nuisance for me has been the lack of a customizable home page - it currently takes me 6 clicks to get to the internet video page (the one I'd use most), then further navigation to the Netflix, Hulu, or other channels menu pages. If boxee is my main media front end, I should have access to my most-used media sources (Netflix, Hulu, Comedy Central, CNN, BBC, and Network Storage for me) immediately available on the front page. I understand that boxee is aiming for a community feel, but for most of us, we know what we want to watch, and browsing what our friends are watching is a secondary bonus.
Despite this limitation and the lessening number of bugs aside, boxee has given us a great media front end so we can cancel cable and go internet-only! Thanks for all your work!