In reply to Sl@te Head: I got it. Nice guide, typo on the first page I opened, plus ca change!. Otherwise, usual high quality and good pics. The coverage for a wide area guide is very good, and the inclusion of some Mid-Wales crags is a nice addition.
The inclusion of sat nav co-ordinates which started in the Costa Blanca guide is a good feature, and as yet I haven't found any errors in either guide.
I guess the physical size of the guide is down to taste. The excellent Ground Up guide manages to get full photo topo info into a smaller footprint. Slimming down even further are the definitive guides, but without full phototopos and still a feeling that they haven't quite caught up. In lieu of electronic version of the Rockfax guide, I've found scanning onto a smart phone works ok in the interim.
I like guidebooks, and would have bought it anyway, and overall the production values are top notch. However, my 'dream team' for the area is the Ground Up area guide, especially because of the inclusion of bouldering. Supplement this with North Wales Bouldering (hurry up with the new edition!) and a copy of A55 Sports climbs, and there's enough for any eventuality.