Great light!
Have had mine about a month and a half now, it's seen regular use around the house (and a few trips out, primarily to see how the unenlightened people out there react to it!), and I'm still on the first set of cells. It just lasts forever on low, while still providing more than enough light for near-middle distance tasks.
To me the size is just right in the hand, and the machining is typically Surefire - i.e. Perfect.