I recently took a trip to Haiti, and in preparation for the trip I used the Creole Made Easy materials, including the Pronunciation Guide cd, and the Workbook. I used all three of them together, so I'll review them together as well.
Creole Made Easy is an excellent introduction to the Haitian Creole language. It provides the basic building blocks in terms of grammar and sentence structure from which to go further. This book is not an "emergency Creole" book, and didn't have anything by way of greetings, phrases to use while traveling, etc. Being in Haiti, those things were very easy to pick up, especially with some of the basic grammar under my belt. The Workbook is split into two sections, the first with exercises that correspond to each of the 16 lessons in Creole Made Easy. The second half of the workbook has more practical lessons like: numbers/time, months/days/seasons/weather, colors, family/friends, marketplace/food, around the house, and health and medicine. Indispensable to learning any foreign language is listening to it, and the Pronunciation Guide cd was excellent in that regard. I found that it was great practice for listening to the native speakers (though even then, I was listening too slowly most of the time) and great for understanding how to pronounce all of those nasal sounds. There were a couple of moments of frustration in using Creole Made Easy: there were a couple of misspellings; sometimes a word or phrase was used seemingly out of nowhere and wasn't listed in the mini-dictionary in the back of the book; a couple times a grammatical structure or phrasing was used and I had no idea why it was used that way, and it wasn't explained. This happened very few times, and can sometimes be a good problem-solving exercise that you need good practice for when trying to have actual conversations with Haitian people.
Of the eight people who went with me on my trip to Haiti, I was one of two who used Creole Made Easy, and the only one who completed all 16 lessons. I think some of the others used the Pimsleur cds (not any books). I was by far the best Creole speaker/listener and felt like I was in a perfect position to learn exponentially more while I was there. I was told over and over again "ou pale Creole byen!" ("you speak Creole well!") which I shrugged off for awhile until it began to sink in that this was true. Also, I wish I would have brought Creole Made Easy along with me instead of the Hippocrene Haitian Creole/English dictionary, because I think the dictionary in the back had a better selection of words and phrases I wanted to say. The Hippocrene has no phrases at all, and often didn't have the words I was looking for. All this said, I would strongly recommend the Creole Made Easy materials to anyone interested in learning Haitian Creole.