While it is good on some level that AC has IFE on all seats, they must regret buying the system that they did since it is a serious dog and crashes SO frequently. They other thing that bugs me is the way that the monitors are, for the most part, widescreen yet the version of the movie that AC gets is letterboxed so you end up with black (or at least dark grey) bars on top, bottom, left and right.
The other advantage to using your own IFE is that you don't have to wait through the announcements in 2,3 or more languages.