Brothers in Arms is a very entertaining game that kept me at my computer eight hours straight. I had a hard time completeing some levels but none frustrated me enough to make me quit playing. The AI performs well and your squads take your information and expand upon it, finding cover and such.
The most frustrating attribute of the game is the fact that you need to wait with your ironsights up for around 3-5 seconds in order for you to be able to hit anything. It took me some time to find this out, this was very frustrating and I stopped playing the game for a few days, I came back and spent eight hours in one sitting and beat it.
The game performs well on my PC, but I can't quite put everything on full with a 256mb video card, a gig of ram, and a 3.2 Ghz processor.
Overall Brothers in Arms is a fun game, in which some time is necessary to adapt to.