So. I was going to write a review on Matter...
Well. I wrote it, played with it, rephrased bits of it and then went out into the Interweb to see what other people thought and if I agreed.
Chris the Book Swede thought this.
SF Signal thought this.
io9 thought this and published an interview with Iain M Banks here.
After all those other words (which I pretty much agreed with), I felt a bit redundant so decided not post my review after all. I might video his reading/Q&A session that I have a ticket for on Thursday and in which case I shall edit that and link to it here. Depends how vigilant the Waterstones staff are!