Weak start, but does build up the to pace I expect of Asher.
The main issue really is that it desperately needs some more thorough editing. The version I read is the version that Asher self-published through Amazon after the publishers of the original illustrated version (Tanjen Ltd) closed down, and I think the fact it's self-published is very overt—which is to say, in many places it reads more like a fanfic than a professionally published book.
For example the word "superfluous" is used twice in the first five pages (ironically both times surrounded by actually superfluous modifiers that an editor would remove). The majority of the dialogue in the first half is clunky and cliché, with a half heated attempt to acknowledge it in a meta joke: '"what is the meaning of this?" Bannerman asked, realising he'd been speaking in clichés for the last half hour'. Besides the clunkiness, there's also lots of grammar mistakes, and a spelling mistake on the blurb.
Asher notes that when deciding to self-publish this (the first of quite a few novellas he's self-published now), he chose not to be "too heavy-handed since I didn't want to deliver something that had completely ceased to be the original". I think that this was the wrong move, which has in turn only confirmed the fact that this is, in Asher's words, "perhaps only for completists".
That's all to say: by the end it's decent, and the themes were good (approaching, but shying away from, class war in parts; mainly focusing on more classic SF questions of android sentience etc) and anyone who's read a lot of Asher would probably still like it. It is, however, weaker, less well paced, and more error-riddled than his other publications.