The search functionality is currently under development, and it's by far the most critical 'missing' feature.
As a workaround for webapps: using the 'Capturing Assistant' and configuring BugJail to capture only your own packages helps a lot. That way you usually see clearly which thread handled the request, and also have less app-server / framework level crap that you need to expand through before you get to your own code.
If you'd like to get notified when the search functionality is available, just shoot me an email (my email is in the contact page).
Thanks for providing the feedback, and sorry that the initial experience wasn't better.