Really good. I picked this up because it was on Alex Brown's best YA SFF list for 2017 over at Tor.com and it was one of a few on there I hadn't yet read. Also the author is Canadian:)

This alien invasion book focuses on character development and lots of inner dialogue about emotion rather than action scenes, so if that's your thing, you might enjoy it. The ending was great, and has me looking forward to the sequel.