The touring company is excellent. The dialect coach is stellar and the accents are 100% believable. A couple seated next to me thought the entire company was British.
To echo adagio's comment from above, if you can, see the alternate (Benjamin Wheelwright) as Christopher. When I saw the tour earlier this year he went on for Thursday evening, Saturday matinee and Sunday evening performances. It was one of those rare moments where the actor completely disappeared into the character... an absolutely natural performance. I can also say the other leads playing his parents and teacher have the same effect. It's as if these people were plucked out of their everyday lives and dropped on stage in front of you.
As far as the staging, it's been slightly modified for the tour, which understandably doesn't use trap doors. However, if you haven't seen this production before, you won't notice anything missing. The clever "hybrid" black box setting makes it so easy to suspend your disbelief and get absorbed into the characters' world for 2 hours.
If you do attend, let us know what you think!
"I'm seeing the LuPone in Key West later this week. I'm hoping for great vocals and some sort of insane breakdown..." - BenjaminNicholas2