That's it? You just have to sneak past Elijah as he walks in and down the stairs? I thought it wasn't possible to pass through the force field.
I didn't have a stealth boy and don't recall seeing any (from the Wiki they are sometimes found in Dean's Stashes, maybe I missed one) so I'll just to console it in.
Good back story revealed by the plot and terminals
Cons:
Not keen on mazy locations where everything looks the same.
Getting into the casino seemed to take too long and was repetitive
Grand opening wasn't so grand.
Too many find-key-unlock-door type searches.
It's a pity that it's impossible to go back after returning to the Mojave.
A lot of it felt like a grind and personally I don't like the quest style but having got through it (I've yet to get the gold out) I find myself looking back on it with some affection. It's a well made and challenging DLC.