I read Excession recently because the Minds concept seemed great, and I liked it so much I followed it with The Player of Games, Use of Weapons, and Look to Windward, during my commutes this past spring. I just started Surface Detail and plan to read Hydrogen Sonata. The stories are all very distinctive.
Banks’ writing is worldly and genuinely funny in the self-ware sense. The drones’ dialogue in particular. The emotions are complex and mature as well, Look to Windward especially.
There are a lot of “clever” in a cute way writers who like to remind you of it constantly, and others who can do tight punchy plots much better than Banks, but lack the big ideas. If you spend hours writing, clever is really not that impressive. When someone is witty in person, that’s impressive.