Just got back from The Matrix Revolutions. Reviewers have been strongly divided on this; most seem to hate it, but some (including the P-I) were pretty positive. Personally, it was okay, but not great. Better then the Star Wars prequels, but not as good as the first Matrix. Call it 2 1/2 stars. It gets points for closing out the series in a decent place, but it needed some serious editing--it really dragged at times.
Update -- it's basically impossible to review this without mentioning Diego Doval's abridged script. Warning: consists of nothing but concentrated spoilers. IMHO, the movie is slightly better then he makes it sound, but he nails the gaping plot holes.