I honestly think Knight's Shadow is better than Traitor's Blade. It will make you laugh out loud and it will break your heart. It's much longer then the first book but at no point does it drag or feel like anything has been added for filler. 
 I still love the three main characters and Kest is still my favorite. Also Ugh. Who has perhaps the most tragic story of all. Valiana also snatches up a special place in your heart and I love that so much thought was put into her character. I do think Falcio has a little bit of special snowflake syndrome, but I'm willing to overlook it because he's earned it. 
 Traitor's Blade is about Falcio finally accomplishing the mission the king gave him five years prior. Knight's Shadow is about the Greatcoats navigating the political landscape that comes with accomplishing such a mission. There are plenty of battles and sticky situations for our characters to get themselves out of, but there are also a lot of plot twists and turns and general intrigue. I did see at least one big twist coming but the other one was a definite surprise. I don't want to say it came out of left field, but the motivations for it weren't incredibly clear. 
 If you enjoyed the first book at all you owe it to yourself to follow through with the sequel. Again, it is a complete story in itself and won't leave you with any massive cliffhangers, but I already can't wait to get into the next one.