Having read other reviews on this road all I can add is to say the road is really good for bends, but the condition of the road is very bad. The tarmac is very patchy and causes a lot of wobble as it tries to go into the ruts.
Really slippy under the trees when wet.
For a cruiser like myself it is a good road as I just plod along and enjoy the ride and the scenery
The route is lovely, but its let down by the poor road surface. It needed resurfacing when I first drove on it 8 years ago, and its got worse since then. There are miles that havent even had cats eyes put in yet!!!!.
But I used to comute it four or five times a week for about six months, and I got my time down to 42mins. I ocasionaly travel it by car as a pasanger and it takes 1hr 10 mins.
There is a great chippy in Credeton, The Trawlers catch:)
Take the B377 from Exeter to Crediton this first bit is quite boring but after crediton the road gets Interesting. Then from Crediton to barnstaple (beware of a bad right hand bend about a mile out of copplestone.