I launched the game to just take a brief look at what's new and I noticed a few problems.
1) In the July-Campaign Start, their is a double garrison in San Francisco (Central California Garrison I believe?)
2) Some Artillery units in the Confederate Army of the Potomac are mistakenly displayed and counted as Infantry regiments (3rd Wash. Art. from Longstreets Brigade, Lynchburg and Louden Art. from Cooke's Brigade)
Just a few design questions as well:
Is it intentional that the historic name of armies have been changed? In the Shiloh scenario Grant commands the Army of the Cumberland (not created until after Stones River in early 1863), and his actual Army of the Tennessee is commanded by Buell, who should be leading the Army of the Ohio. In the campaigns, McDowell's early army is called the Army of the Potomac instead of the Army of North-Eastern Virginia. I know the names of the armies is very minor, but it seems phony to me.
Also, Jackson was giving Irregular fighting skill? Not sure when he'll ever get to use it, nor where he showed that talent historically...
The graphics are going to take getting used to, and I can't say I'm a fan right now. To me, the generals and units look much more cartoonish and have a more generalized feel to them. I guess what I'm trying to say is in AACW the Generals stood out apart from each other more.
I also miss having immediate info on my armies laid out in front of me. In AACW I could click on a stack, know if it was active and easily change postures, special orders, and other actions/info without going through filters or the main stack info disappearing when I click on specific units.
In all honesty, this brief glance has been disappointing, but I have yet to use any of the new improvements, really haven't played and I have faith that if there are any mass calls to change things, these will probably be answered in future patches.