I'm expecting one possibly today, so I'll be looking forward to seeing how it compares to Spydercos other small SS folders (Lava & Navigator II). It's wider & heavier than the other 2, but it has a nicer lock, IMHO, & probably will fit my large hands better (XXL). For its size, the blade's fairly stout & I prefer Spydercos wire clip to to the other clips (Less obvious & won't look as bad if/when it gets scratched up).
As for being worth it for $100, only you can answer that. At the moment, I still think the Nav is a great all SS little knife for the buck, but if the prices were equal, then yeah, I'd say it's worth it.