Personally, I think that this book is a classic from Lewis. His style of writing is fantastic and enables those with a range of intellects to understand his theories. His clear, succinct style, which raises important issues relating to the misconceptions of Christianity, is admirable and incites thought and philosophy. Furthermore, his use of the English language is gripping and fluid.
For Christians, I would say that this book is a must-buy. It helps to edify the case supporting Christ and raises thought provoking issues that any Christian should think about. It is a brilliant book that serves to stimulate Christian thought as to the real identity of Christ and other pertinent issues regarding morality and much more.
For non-Christians, I can understand if some do not like this book. However, in my opinion, Mere Christianity steers a balanced approach to Christianity which serves the non-Christian just as much, arguably more than, as the Christian. If people are interested in seeking further clarity as to the identity of their own moral being, God and Christ, with an open mind - this book is fantastic for such readers. Moreover, I think that this book is suited to those who 'believe in God' but in reality such an proposition does not change their life the slightest, nor do they know anything about their God.
I highly recommend this book for everyone who intends to broaden their mind if nothing else. However, I would confidently presume that the high majority of readers would be more than satisfied with this read. One of Lewis' best!!