My old group actually played quite a few one shots with it. I found it to be very good game. The mechanics were simple enough, and since there is no set skill list you could get as deep with a character as you wanted. My old group and I personally didn't like the default campaign setting, but we found it great for the one shots. It seems like it would hold very well for campaign.
The spotlight for me though goes with the sanity system. Because usually in games with sanity you only have two states: sane and insane. Like normal and gibbering. At best, you can be a little off kilter. But this system explored what happens not when you go out of your mind crazy, but the quiet hardening of your soul kind of crazy. I like that, and am glad it found it's way into Nemesis.
