Right, so first of all the best part was to meet great people. We happened to meet really cool guys, obviously with similar interests. Western Africa is a tough place and on top of that some of the offroad stages were tough on their own right too. We helped each other constantly and it was like a mission accomplished when we arrived in the finish line.
Some trucks were sold or donated at the finish, in Banjul, The Gambia. Many people, including us, were driving back to Europe, but the drive back to Europe was independent overlanding. I was looking forward to the drive back more, than the actual rally, but ended up being quite sad when the rally ended. It was more fun than I expected it.
I have to also mention the bad parts. During the whole trip, you don't really have the feeling that it is organised by a charity. More like a very for-profit organisation, without the customer service that you'd expect. Pre-departure the organizers emails were chaotic, during personal interactions one of them was rude several times.
That is part of the whole picture, that I had to mention, but having said that, I would still recommend it, it is a great experience, especially because of the people you meet. Western-Africa was special because we travelled to places we would have never gone, due to real or non-real but perceived danger.
Driving in places like Mauritania is not the safest. The road is full of careless drivers.
As an adventure and experience, highly recommended.