Our comparison, once again turns to the night train scene from Bond's Casino Royale.
As is common, projectors with relatively poor black level performance tend to do well at shadow detail. This is, if for no other reason, because the blacks and near blacks are so bright - due to the weak black level abilities. Thus, with everything "lightened" based on the the only slightly darker than medium gray blacks, shadow detail is everywhere.
One would almost be screaming from the rooftops "Awesome shadow detail", but for one thing. (Actually, I really don't think anyone would do that - for any projector - rooftops can be dangerous, probably doubly so for those who game all day and night).
OK, you already know what that one thing is. The GT720's black level performance is not great, not good, not even mildly impressive.
For your curiosity, and for general demonstration of blacks and shadow details, here's the GT720 taking on the usual other projectors, in the night train scene:
Ouch! The above image is the GT720, and boy is it washed out compared to all the others. Note the brightness of the letter boxing, even compared to the image right below, the more expensive, but still low cost, BenQ W1200 home entertainment projector.
As I had mentioned elsewhere, if movies are your thing, and gaming is second, this image above is a good indicator of why the GT720 probably isn't the best projector for you. On the other hand, if you are playing World of Warcraft, and find the dark areas too dark on many projectors, they're probably just dandy, if a little lacking in dynamics, with the GT720 game projector.