I liked the AIR movie, but damn. This one was just bad. The camera work gave me motion sickness, the 'plot' just jumped around with no momentum whatsoever, and some of the characters I liked in Clannad (before dropping it) suddenly became irritating (particularly Sunohara) because they completely went against the mood.
And why didn't Toei hire the AIR movie's character designer? Those redesigns were actually pretty good!