The Bottom Line: A unique experience that only gets better with great staff and a good setup.
Pro:
The staff explains things just well enough to get you to proficiency, and treated us well. The axes and knives were in good throwing condition, and the cages for throwing enhanced safety.
We enjoyed it for the full hour (and then some), but we're pretty competitive. If you just want to chuck some axes for a little bit without really caring about improving technique, accuracy, or hit rate, and hour might be more than what you would prefer.
Con:
The training is just enough to get you going, but is not at the level that I've experienced elsewhere. I advise training people a little more, as I suspect people may get frustrated or scared if their axes keep bouncing back at them.