I found the FM to be so-so. But the gunnery was challengingly nice, and the graphics good. The view system was not to my taste.
Since I was already an AH veteran, I was quite amazed about the results of the FM and Gunnery model were, - in my first fight I ended up one vs 5 situation and got out without a scratch, while everyone else had a hole or two. I have not seen much of that in AH!