James Arnold's 'Napoleon on the Danube'

Wading my way through James Arnold's 'Napoleon on the Danube' in preparation for The Cultural Experience's tour of the same name - see http://www.theculturalexperience.com/battlefield_tours/vienna.php.
I read his 'Crisis on the Danube' many years ago, which I remember enjoying. The latter dealt with the opening battles of the 1809 campaign in Germany - Ratisbonne, Eckmuhl, etc, whereas this one deals with Aspern-Essling and Wagram.
Arnold writes really well - an easy author to get to grips with. His description of Aspern-Essling is very good as his round up of other worldwide events concurrently taking place in 1809. The book lacks a bit of balance because its light on Austrian sources. However he needs to understand that river banks are defined as left and right when one faces the direction of flow of a river. Either he has got that wrong or he erroneously believes that  the Danube flows from east to west. These are errors that he repeats throughout, and given that much of this book is about the crossing of the Danube, they can very much confuse the reader. Also the maps (in my 1990's edition) are appalling - I suspect that he or his 'cartographer' where trying to get to grips with the latest 'drawing' software, which in the early 1990s was pretty bad compared to what it available today. If this book has been reprinted, I hope that the publishers have the good sense to have the maps redrawn. Failing that, you will need to get hold of other maps to facilitate your understanding - especially with the manoeuvring of 5/6 July.
Overall though, a good read so far and despite my criticisms (and anyhow you have been forewarned) I would recommend this book. I'll update this review when I've finished it.
Really looking forward to Vienna though.