I bought this book for a safari holiday in Tanzania. At first I wasn't sure I had made the right choice. There were a daunting number of species included, and it was a bit big and heavy. I couldn't fit it into a jacket/waistcoat pocket like my usual European guides. But as the holiday developed it became a friend - something to flick through as you sat back after a drive, as well an occasional reference during the drive. Anyway since most of the time we were in a vehicle, the weight didn't matter that much. It had exactly the right balance of detail, and its comprehensiveness was a real asset. The identification notes are brief but very to the point and helpful. One of our drivers - and the keenest on bird identification - used a copy as his main reference..and the book became a resource for our whole group (well those interested in the birds!).
Apart from the size (too many species from rainforest, etc, cluttering things up), I had only minor niggles. Sometimes names don't match other usage (it has no "masked weaver" mentioned anywhere, though this bird turns up on bird lists - I think this is an alternative to "lesser masked weaver" in the book). Maps sometimes give too broad a distribution, (eg marking all of Tanzania red, when clearly this could not be the case because of habitat restrictions). Overall very pleased with the purchase.