I’ve read a few of his other writings (as Iain Banks without the M) - notably The Wasp Factory which I found deeply disturbing and I’ve read a few of his short SF stories in a collection called The State Of The Art - a couple of which were ‘culture’ based.
Anyway, I chanced upon a copy of Use Of Weapons in a charity shop and I’m about 1/4 of the way through (no untagged spoilers please). I particularly like the way that the machine intelligences are nutty and the machines use silly names for their spaceships (like Bad For business or It Was Like That When I Got Here).
It is also a sign of good writing that, even though the technology should make the culture practically omnipotent, the story does not suffer from it - the characters still face trials and challenges.