I just ran this tonight and it was a rousing success. The process gave each member a chance to shine, and several of their choices suprised me. You will not have fun if you have a railroad or set series of things you would like your players to experience. You need to be flexible and let them come up with plans of their own! This gives them more investment in the caper.
The Flashback mechanic was a hit, allowing the players to change a roll from one skill to another, and in one very liberal use on my side to allow for the placement of one very specific item that made for a very memorable Score Skill Challenge Escape.
This does make for a very improvisational and seat of your pants game that if you are into that sort of thing was great fun for all.
[5 of 5 Stars!]