Lightworks has a setup that I find is quite different than other NLEs. Some people seem to like it, but many don't have the patience to learn it's system very well. (I fall into the latter category.)
I started out with vegas, then moved over to premiere. Vegas to me seemed like it was easier to learn on, but if you've had any experience with NLEs in the past you should be fine with any.
same i got premiere through the pirate bay, and when i enter one of the serial numbers included it says it works, and i have the full version for the time that i'm on it. But the next time i go back into it, it's needing a serial number again.