Spoiler. I Hated
I hated the ending. It wrecked the whole film IMO. Even though the movie is very slow I still was intrigued by Cranston's character and the story. If anyone else was playing the role I might not have even bothered watching it or would have stopped watching after a half hour.
I hate these completely open endings. The reason I kept watching was to see how he explains his absence and to see if they stay together. What a waste of almost 2 hours. A decent ending would have made all the difference.