First, before I comment, it's not trench warfare, as I understand the term. The Americans may be in foxholes, but it is not trench warfare.
Ok, first I'll discuss presentation. The cover on the Blu-ray is s**t. Photoshopped pic where Cap's head is too big and his hand looks like that guy from the Burger King commercial. The 3D one is the best option in the States, and I wish I had it for mine. Cover's not worth an extra $2 (my newspaper boy has been hounding me for weeks for that anyway). The menus look nice. Reminds me that the end credits were some of the best that I've ever seen on film.
The BTS stuff was why I bought the blu-ray. The Transformation was the best to watch for me. I'm astonished at how well the Skinny Steve effects were. Joe had the best explanation I've heard for why it worked so well. He comments that they used different combinations of different tricks for each shot. Even within a single scene, there would be various techniques used to accomplish Skinny Steve. Because the mind is constantly looking for the single trick used, and it never stays the same, the mind accepts the effect as real. Makes sense to me. That, and Chris absolutely nailed the posture, speech, and mannerisms of a small, meek individual. The worst featurette was for The Avengers. It was just a poorly edited trailer of sorts with no merit.
Onto the deleted scenes. They all needed to be cut. As far as storytelling and pace, there were no bad decisions. The information in the Times Square scene was useful, but I like the way the movie played it. What the movie does is take all those natural questions and puts them after the "I had a date" line. The audience knows that information will be relayed to Steve, but I think the date and Peggy would be the first thing on his mind. It was the last thing on it when he crashed. It was a beautiful moment, and the cut exposition makes it that way.
I haven't listened to the commentary, yet. I'm excited to hear Joe's notes throughout the movie, but wish Chris and some of the actors were available to discuss as well. Overall, it was a good expense of $23.