I noticed several people here consider the fact that it uses environment mapped textures is hum.. kinda negative?
I don't think so:
Textures naturally contain much more complex lighting-information than a manual light-setup (using a few lights only).
Using photographed textures (be it environmental- or simple color-maps) also add a lot of realism to a scene.
When professional CG has to be integrated into filmed material, taking light-probes from the original setting is quite established.
Environment-Mapping generally has the downside that the "environment" is expected to be far away and can't capture close local lights very well - so it's always a matter of what you want to achieve.