To leaf through it looks pretty good. Loads of aerial photographs and chartlets, nice clear layout. However, once you start reading in earnest it becomes infuriating. The chartlets are dropped in more or less at random, and are only roughly near the pages they refer to. "Milford Haven to Fishguard" appears twice, on pages 4 and 20 and more detailed chartlets of this area are scattered around in no clear order.
Coverage is extremely odd. The passage around St David's head is covered in exhaustive detail and the further north you go the sketchier the detail is. It seems to be more of a guide to "Some Marinas I have Visited" than anything else. Why no Ravenglass? Why no Carnlough? What other places have been left out? Why on earth discuss two possible anchorages (just about the only anchorages mentioned) on Skomer in great detail and then miss out entire ports?
The organisation of the whole book is peculiar too. It starts from Milford Haven and works its way up the east side to the North Channel. Then instead of coming down (or going up) the west side it starts at Howth, works up to Rathlin and then starts again at the bottom and works up from Carnsore to Dublin. As a result the two best marinas for Dublin, Howth and Dun Laoghaire, are fifty pages apart, and Dublin Bay is similarly split in two.
As I haven't used the book in anger I cannot comment on the accuracy of the contents. However, there are far too many places where the author says "I have no information about ..." That's not how it works: when you are taking thirty pounds from people for a pilot book you have to find out. It's called research, and that may involve more than looking through your own log books for the last few years.
Overall? Some bits will certainly be useful to me and as a guide to some diversionary ports it could be handy. In both cases, though, this will be despite and not because of the coverage and production. This book desperately needs more detail (particularly at the north end), sensible organisation and an editor.