The Matrix: A masterpiece of modern cinema, smart, ground breaking special effects and action packed. Excellent SF.
The Matrix Reloaded: A decent follow up but ultimately a let down, the action still top notch (apart from Neo vs the hundreds of Agent Smiths it just looks like a video game) as for the story it's bloated and hard to follow.
The Matrix Revelations: Dull, i have a hard time remembering anything about it and i've seen it at least 3 times.
I would give the trilogy overall 3 stars but the DVD is so crammed with extras it deserves another star.