Lots of nice subtle touches I thought...and I fully agree with the homage aspect and that it warranted 2 hrs.
I really hope that Noble gets an Emmy nod this year. He is sheer poetry to watch. Pure childlike glee < "Stay out of the meds!" > to being robbed of candy crush. Simply beautiful work.
Subtle touch with the Akido deflection. Exactly the right strategy in that situation. Lesser shows would have done that totally wrong.
The typewriter bit was really imaginative.
Daniels/Broyles is a player throughout the multiverse it seems.
Couple of pretty big gaps at the end tho.,,, it was pretty much hammered home the fact that 'they' can be anyone...and nobody thought to perform a Bashir test on Charlie?
And if the soldier had time to take out Charlie, shape shift, put his clothes on, hide him, then grab the body of the nurse (wouldn't he have also had to shoot her?), he just left his critical tech on the floor?