I came across Greg Egan because someone had told me it was 'cyberpunk'. I'd finished Gibson and wanted more - more grit, more international megacorporations, more cyberwear.
And I got it, in 'Quarantine'. But that wasn't the point. The first quarter of so of the book is very cyber: neural modifications, private police, dodgy corporations all over the shop, and just when you think it's become boring, that Gibson did it first and better, Egan throws one of the best spins I've seen in recent science fiction and you find out what the raison d'etre of the book really is.
Whether or not you like cyberpunk as a genre has nothing to do with whether ot not you'll like Quarantine, although if you're already into it you'll get through the opening chapters better. It's really good old-fashioned speculative sci-fi, the sort that used to be set on alien worlds surrounded by spaceships, but which Egan has now set on a mid-21st century Earth - a brilliant fusion.