I was disappointed that this entire book was not written by MacArthur. I didn't read the fine print under his name on the cover. The chapter on homosexuality is irrelevant. The author doesn't allude to any data he may have used for his comments. It seems to be based on his opinion alone; seemingly without the input of any gay people whatsoever.
This is a good book for those looking for some quick answers. Not a great deal of depth, but excellent generally. I would disagree, however, with MacArthur's strong attitudes toward homosexuals. He says that their feelings are a sin. I would agree that acting out is a sin, and feelings need to be dealt with. But just as a person lusts for anything, is that a sin in itself? We have to fight against these, but thoughts come unbidden. Ex. Jesus in the wilderness.
I highly recommend this book as it's an excellent book that will challenge Christians to think biblically about today's toughest issues. Each chapter is very well written and has lead to some great discussions for a small group.