I bought this book in 2008 when I had just taken up mountain biking after a break of about 10 years, and my partner and I were going to the Lakes and taking bikes with us. We picked one of the blue routes that was close-ish to where we were staying, and that looked like 'fun'. It was a fabulous route, although even at a blue, the technical bits were way over our abilities at the time, but that is just the Lakes for you really. In spite of this, the book was amazingly clear, we never got lost, the map was spot on, and I couldn't fault the book at all, just my fitness / ability.
We have since been back, having practised our skills quite a bit! This time we were a bit more 'wise', and actually took some advice from a bike shop about routes, for a day out. When I checked the route we had ridden against the book, we had managed to do one of the best bits of downhill the book reckons the Lakes has to offer - which I *have* to agree with. We loved it so much, we planned another route that would also take in the same downhill section on another day. Following a bike shop map was a lot harder than this book though, and we got lost a few times. Next time we go, we're going to attack Hellvelyn!
Great book, great series.