Do you have to manually do a trafffic search from the menu every so often or do you set it and forget it?
When you are navigating, the traffic will update automatically. Usually about every 2 minutes or so I've noticed. When not navigating, you will need to update the traffic manually.
How does the traffic information dispaly?
There is a sidebar on the R side of the Tom Tom which will give a delay summary. If you tap it, you can access various ways of checking your delays. It also shows traffic actively on the roads. Yellow moving "arrows" or red depending how impeded the flow is. It's pretty slick actually.
Is it route specific or is it just a traffic report like you would get on the radio.
It is if you are navigating, yes. It looks at the conditions on your selected route. You can also browse traffic under the browse map feature (like Google Maps).
Is there a way to automatically route around the traffic jam?
Absolutely. It will ask you if you are on route and traffic changes, if you'd like you re-route. If you plan a route and there's traffic, you can replan to avoid all delays. It works pretty well, I've been happy so far. It's not ALWAYS accurate, but it's saved me a few times.
I've been using traffic for probably 9 months on the thing, and I have yet to pay for it. Just FYI. Call Tom Tom.