I actually read this in Analog SF (Kindle edition) in installments (I'm a sucker for those...a nostalgia thing, I guess. I remember waiting for the new issue to read the next section of a novel by Frank Herbert, Roger Zelazny, Robert Silverberg, Alfred Bester, etc.)

That said, this was another good Sawyer novel, though not my favorite. It had a "thriller" quality to it and felt a little soap opera-ish, though it explored some interesting twists on the "what if we shared one another's memories" theme. It felt like it could have gone a little deeper, but was a great springboard for speculation.

Sawyer was apparently inspired by Moonwalking With Einstein by Joshua Foer, a nonfiction account of Foer's introduction to "competetive memorizing," among many other things associated with memory. I would highly recommend that one, too.