In one sentence, this series is phenomenal.
I loved every story in this series. The characters are wonderfully written. Each story digs deep into a well of emotions that make everything real. My favorite books overall are Rewind and Return. I absolutely fell in love with the Noah character though, so his book was a fantastic way to round out the series.
This is definitely a must-read series, and the box set makes it easy to binge it. The only thing I was disappointed with was that the series was over too soon. I felt like I could have stayed immersed in the Rewind world for much, much longer.