I have read all Jack Reacher novels written by Lee Child.
Compared to the Tom Cruise debacle, this series is a breath of fresh air. Yes, Reacher's size is now rectified.
Having said that, Jack Reacher from the novels is not Ivan Drago. A Reacher novel is an intellectual read. It is plain and simple mystery, attention to detail, the reader does not dare skip a single word.
Also, Jack Reacher is only 205 pounds at 6'5", he is a mobile soldier, not an Anthony Joshua gym rat. Reacher's military training makes him dangerous, not his size. Reacher is really smart too, that angle is totally missing from the series.
If you have not read the novels, go ahead and enjoy. Hard core fans can stay away, and spare themselves of another dissapointment.