The premise of the novel is intricate. Time traveling is involved, but it is essentially, a love story. Clare and Henry met when Clare was six and Henry was thirty-six, and were married when Clare was twenty-two and Henry thirty. This is due to Henry suffering from a rare genetic disease which pulls him back or forward to his past or future. Gone, with nothing but his clothes left in a pile on the floor. Niffenegger writes about their various encounters and how they try to to lead a normal life, afraid of blinking out of fear of not seeing each other's faces when opening their eyes. 

This is a book, you either absolutely adore, despise or remain unsure about. It is very slow-paced, and I think sidetracks too often which confuses the reader as to where the plot is going. A reader often looks for a character that is deep with a conscience and abilities we aspire to have and that we find ourselves in. With Henry, I think Niffenegger spent TOO much time on Henry, leaving an impression of a fabricated man without an organic approach to him, which, in my opinion, is negative.

What I did love though, was the time traveling. It was amazingly engaging and you did feel you had gone back or forward in time with Henry and are given a peek into another world. 

Those who are fans of David Nicholl's 'One Day', I think will like the pace and the story of the book, and though I do not think it's the best in the bunch, I think it's worth giving a chance