I read Echopraxia as part of the Firefall collection, so immediately after reading both Blindsight (although I did take a break to read The Colonel). Honestly, I was underwhelmed. It feels like it is trying too hard to be Blindsight. The sudden twists are there, just like Blindsight, but without any of the buildup. The characters are interesting, but many of them lack nuance. Some even do things just for the sake of being shocking. The ending made the entire book feel pointless. Ultimately, I'd only recommend reading Echopraxia if you just really want more of the Firefall universe.