I'd say it's 90% (by mileage) good, and I've cycled a few thousand miles of it so that's based on significant experience. But there are certainly poor quality b

I'd say it's 90% (by mileage) good, and I've cycled a few thousand miles of it so that's based on significant experience. But there are certainly poor quality bits. Sustrans is currently doing a mile-by-mile review of the network with the intention of bringing it all up to a quality standard, and withdrawing those sections which can't reach it.