It's a great book that changed my life. Just be careful, the changes can be dramatic. I always laugh when I drive by a church marquee (sp?) and they're about to start studying the book. I think, the pastors will be working overtime for a while - lol.
Not to mention the bashers and detractors here on Free Republic...just wait...
This book has many dangerous ideas.
I recommend a truly GOD-centered book that recognizes our purpose is only to serve God almighty and glory in Him....that our ultimate purpose is to do his will, not our own purposes.
Don't Waste Your Life, by John Piper.
It is great. And, it isn't heresy.