I gave Winter about 3.7/3.8 out of 5. 
 It was a good read but for the last book of an epic, much beloved series, t is very underwhelming. I think too much went on that it was so messy and forgettable. I think this book wouldve been better if it was split into two or three, like damn, too much went on and the things that went on was underdeveloped. 
 AND IT WAS UNREALISTIC TOO. ESPECIALLY THE REVOLUTION, It was weak. Cinder wasnt convincing enough. Dont get me wrong, I love her but come on, she s up against Levana, more was expected. And their plans were meh. I think they lack people with experience, like veterans (eg in hungergames, theres president coin, haymitch, boggs) because come on, theyre all teenagers man, and theyre not like drilled or bred for war, so for then to take down Levana was anticlimatic and sooo unrealistic that they took her down themselves. 
 Its still enjoyable but sigh, it didnt live to its potential. 
 (Review to be edited.)