1.5 stars.

I was hooked pretty effectively by the beginning and some of the scientific ideas, though to be honest I expected more emphasis on time travel and less "oh yeah all of us have random mystical talents"; conceptually the science was interesting but didn't seem very plausible.

A lot of the analogies/"witty" remarks didn't make sense to me, and I had a really hard time relating to (and even, sometimes, liking) Emerson. I'm just not a huge fan of "we have this paranormal *connection* through our powers but we can't be together :(" and it seems unlikely that two best friends - even if they're guys! - would so suddenly be at odds over a girl. Bro code, man. Speaking of which, I was definitely disappointed that the other girls - Lily, Dru - didn't play much of a role at all, even knowing that the storyline revolved exclusively around Emerson.

Spoiler

And don't even get me started on the part where Michael dies and Emerson sulks despite already having told there's a chance to bring him back - I'm sure we all saw it coming from a mile away.