The 23 minutes in hell didn't do the same thing for me as the Piper book. It was weird in a way. John Piper describes what happened to him in detail, and gives scriptural references to back up what he describes Heaven is like. In 23 minutes in Hell, I had a hard time really believing this guy actually went through that stuff. Not saying he didn't, but the style he used to write it didn't seem to me like a genuine experience. He tells his story using scripture references, vs. actually backing up what he saw with them. Maybe I was just trying to compare the two books, but since the writing style was different, I felt a little disappointed that 23 minutes in Hell didn't really capture me like Piper's story.
BTW, you can go to Invalid Link Removed for Copeland's website. You can check out his daily TV show, podcasts, conference videos and audios and such. I get his free monthly magazine, The Believer's Voice of Victory, and the first thing I read is the Good News Gazette in the middle. Awesome testimony stories every month. I know some wealthy business men that have had Copeland come in and speak with their top business leaders and mentors, and were blown away with his spiritual leadership and training.