The Lamb Will Slaughter the Lion is a short read with a plot that moves quickly: I read it pretty much in a single sitting.  I will absolutely read the next book in the series.  
I am always going to appreciate really explicitly anarchist fiction; some of the punk references felt a little forced here and a little cliché there, but mostly I found them more enjoyable than not.  For anarchists there are many dynamics that will feel familiar here -- the attempts to mediate disputes and make decisions by consensus, really really free markets, etc.  The cast of characters is diverse, and the points of conflict -- which are really a sort of discussion on strategy and tactics -- are for the most part well developed despite the novella's short length.  Inevitably with the constraints of a novella some elements that could've been developed further are left vague; here, it's the general sociopolitical context outside the main setting that the reader learns very little about, as well as most of the characters' backstories.  I really appreciate Danielle as a protagonist, though, and look forward to following her - and hopefully learning more about some of the other characters - in the second book.