The walkthrough is great but always full of people. The best time to take pics is when the park is closing and everybody is leaving. It can get cramped and crowded in there VERY fast. There are some nice shots to be had in there.
Well, I remember during the reign of Emperor Pressler they took the attraction off the "map" but left it open...I think in an effort to discourage visitors so they could tell Eisner they had to close it because it wasn't being visited via the turnstile #s. Heck even the entrance was unmarked (except for some safety tape). After 9/11 they had their excuse to close it. Granted, it was stale, with some archaic technology....can't wait to see the new one.
They also have room for people in wheelchairs. I didn't go in but I have heard the video walkthrough is more detailed. Might be worth a look see because not many people know about this room.