Myndariel is starting a post series called Class X featuring the classes of Lord Of The Rings Online in depth from level 1-20.
She's creating a new character for a class and playing through those levels, giving an expert look at how the class plays, and what each of the specs available can do.
The Burglar class is the first in the series, and it's well worth watching for her others as they become available not only to help you choose a class, but to get a good feel for the best way to play.
My own Burglar is level 25, but there's plenty here I didn't know. (Note there's lots more information than I've pictured below.)