I felt like Forever was a satisfying conclusion to The Wolves of Mercy Falls trilogy. This was definitely more action-y and less angts-y than the first two (especially Linger) and I loved that it felt like all the of the characters grew by the end of the series. Hooray to Sam and Grace for actually maturing in their relationship by the end of the third book and the Forever provides some interesting and believable resolutions for the secondary characters as well. 
 (I have to say, though, my favorite part of Forever took place in Maggie's author's notes.)