What do you read? I pretty much only read science fiction. Are you thinking it's all like Star Trek or something? It's not.
Where would you start with Neal Stephenson? Have you read Iain M. Banks?
As far as The Three Body Problem - it's ok and starts off really strongly, but then just completely falls apart.
I have not read Iain M. Banks, what do you recommend as a start?
If you like Consider Phlebas, you'll almost certainly love the rest. It's a strange start to the series, not least because it presents the Culture as the antagonists quite explicitly, but it's good for introducing some of the technology. The series as a whole is my favourite series of books, it's remarkable.