I bought it too, but I returned it once I actually started implementing it. I even bought the workbook to look at. It all seemed very CM at first, but it was completely different from the CM dictation/narration methods I had been using. I was used to, and liked, my children giving detailed narrations and interjecting their opinions and feelings into the mix, but WWE focuses on short, concise narrations and really long memory stints for dictation which seemed to be more like tricks to be performed than true dictation. The warm, fuzzy, CM moments were not present as I trudged through it. We only lasted a week before I knew that the “old” way derived from Charlotte’s writings was a better match for us.
I’m sure there are well researched benefits to it all, but it was just too different for me to feel comfortable going whole hog, so to speak.:)
I think if you read the text you can get a good idea if it will work well for you. I know many love it, but they are mostly in the classical camp.