EvanP wrote:but what I'm really interested in is what it's like on the ground once you arrive.
I have experience of Ghana and Mali. I've been to Ghana twice for a month each time, and spent a month in Bamako. My first trip to Africa was to Ghana.
It's a pretty full-on experience.
Everything is different: sounds, colors, smells, food, language, music, people, culture, climate—you name it. That in itself is quite overwhelming at first. For me, the first few days were unbelievably intense. There was so much to absorb and learn.
It's dirty. Not in the sense of being unhygienic (although you get that too), but in the sense of being dusty and hot. Especially during the dry months, you get the Harmattan, which seems to carry half the Sahara with it. Visibility is often limited to less than three or four kilometers. Beyond that, everything disappears into a red haze. The dust is microscopic and within minutes of having had a shower, a fine layer of dust covers your skin again, causing a permanent feeling of being slightly grimy. And it's hot. Depending on where you are, it's either hot and dry, or hot and humid, hot being the common denominator

It's chaotic. Traffic can by truly wild. And many cars are something to be seen and experienced. Try a tro tro (group taxi) in Accra, or check out a taxi in Mali. (In one taxi, I had to be careful where I put my feet, otherwise I would have stepped onto the road below…) Or try attending a soccer game. I was in Accra during the Africa cup and watched the semi-final at Accra stadium between Ghana and Cameroon. (Ghana lost 1-0.) That's a once-in-a-lifetime experience

Absolute bedlam. A riot of noise, color, and characters. Great atmosphere. Trumpets, drums, costumes—absolutely wild.
Food is simply awesome, especially if you like spicy food. You'll get to try a whole pile of things that, most likely, you will not have eaten before. I'm the adventurous type when it comes to food, and I had a blast experimenting and experiencing all these new tastes.
Poverty is everywhere. This truly took some getting used to for me. Experiencing this first-hand was very different from the abstract and detached experience of watching a documentary on TV. On a number of occasions, I provided money for medical expenses for people who literally would have died had I not stepped in. It was hard for me to see all that poverty (and to be beleaguered by people to help them at times) and having to decide when to help when to have to say "no."
I came across scam artists occasionally, and there were times where it seemed someone accosted me to sell me something every three minutes. Not surprising really, seeing that I was essentially a walking bank vault by African standards. I can't really blame people for wanting to get a slice of the pie, but there were times were I was quite annoyed at getting hassled incessantly.
Try and get out of the city if you can and see something of the countryside. That's a totally different experienced in atmosphere and character. I saw landscapes and bush that are truly beautiful and very different from any other landscape I've seen (and I've travelled extensively). Something about the light and the smells… On my second visit to Africa, as soon as I stepped off the plane, I recognized the smell. It's unique and somehow feels like coming home. Hard to explain…
Anyway, I could go on for hours. For me, going to Africa was one of those key experiences in my life, and it turned out to be a life-changing thing. I recommend to anyone with even a passing interest to try and go there. The experiences are unique and I think you are pretty much guaranteed an interesting and stimulating time, even if you find that you don't fall in love with the place.
Cheers,
Michi.