Not bad output in real-world terms, but it's going to be a bit heavy given it runs off 3 C cells.
Without wishing to plug something I sell too often, there are Fenixes which run off a couple of AAs and give more output, with the fact they're compact being a big plus.
The new LD40, incidentally, runs off 4 AAs and promises over 3 hours of runtime at 248 lumens. I hope to get one in my paws by the end of the week, so I'll post up a review sometime.
Hello again darkness, my old friend...