I picked up a copy when I went for an internship stint in Uganda, and for two months it was my ultimate travel bible in the region. I planned to do a fair bit of independent travelling in Uganda, and also ended up going for a week-long visit to Rwanda and the book served me well on both occasions.
While at first I was a bit disappointed with the bleak innards, and tightly-packed text, but I guess if you have a travel book it is better if pretty pictures and flashy design are replaced by a wealth of information. And yes, even if the book contained sections on Kenya, Tanzania, Uganda, Congo, Rwanda and Burundi, there was plenty of useful information, including short sections on history, culture and customs. In fact, for those two months I spent in the region I didn't need another travel book at all.
The information contained was extremely useful, particularly for an independent backpacker. Information on local events, places of interest and hostels/hotels was particularly good, and how to travel with public transport to various places was invaluable. They pack a lot of stuff in, and had I not had this book I would have missed out on so many things! On the basis of the books recommendations I even took some local Ugandan friends to cool places they had never heard of!
I also particularly liked that they included a section for lone female travellers with hints and tips on how to make the journey safer, and mentioned in the hostel-descriptions if the hostel wasn't recommended for lone females. As I only used Uganda and Rwanda I don't know much about sections on Kenya or Tanzania, but a friend of mine used Congo section and him too found the book very useful.
My copy is in absolute tatters now, as I used it so much, but I still like to occasionally flip through some pages to remind myself of the places I visited. It is a great book, and everyone travelling in the region should get one!