Like the others have said you need to pay extra to use it with your laptop. It is $15 a month and while they say unlimited there is actually a limit of 5GB. I use it quite a bit and have never had a problem, but if you are planning to upload a lot of large image files I am not sure how that will effect it.
As for how it works you just need a teather cable (USB to mini USB), I just seen one at Best Buy today so it should be easy to find. Then the VZ Access Manager software from verizon. (follow the link and select personal, then your BB, then VZ Access Manager) BlackBerryÂ® Software Updates
It is not super fast or anything, but it is about as good as I bet you will get from a hotel wi-fi system or something similar. Plus it works every where I have been. Good luck~