I absolutely LOVED the entire serie. So much that I managed reading all 5 of them in about 3 days. I cried, laughed, hated, ... I really got caught up in the story. There are twists you don't see coming (although some others are pretty obvious). I am quite sad that the serie is over. I really would like to know how everyhting unfolds between Silver and Logan (mating?), if Simon finds his true love (and tell the reader about the story behind his mark), ... Still so many unanswered questions. She could write about it for years that I would still read them all.
Everything you need is in these books. Love, family, friendship, ... All wrapped up into 5 magnificent books.
My advice ? READ them all !