I have that around here somewhere. I got to page 80, left the state for a while, and lost it in the house. I’ll look for it tonight.
If I had to describe Lewis in one word, I would say, "genial". He was apparently an immensely likeable man in person (though a little boisterous-seeming to the English, as the Irish often seem to them), and it shows in his writing.
And he had to wrestle mightily with his intellect, his pride, and his own personal demons to win through to belief. His autobiography, Surprised by Joy, in some ways conceals as much as it tells, but it is still a very revealing book. The Pilgrim's Regress is also worth reading -- it is a very early book of his and flawed in many ways, but for someone who is in a similar fix it's very illuminating.