This is the best road Ive been on yet, the scenery from Corwen to Bethesda is spectacular and once you get to Holyhead the scenery is awesome. A lot of the road is national speed limit but it does go through a few towns so there are a few part where there is 30 mph speed limit but for 90% of the A5 it is national speed limit. There is also plenty of bends especially just past Corwen. I didnt see any police cameras when i did this. This is a must ride for any biker.
An utterly brilliant biking road, BUT one of the main caravan routes to the Welsh Coast. Go when it's quiet or you'll be frustrated to hell. Basically, Shrewsbury to Welshpool is fast open sweepers, Welshpool to Mallwyd is a fabulous mix of high-speed corners and some fast straights, and Mallwyd to Dolgellau is mountainous with spectacular scenery. If refreshments are required, Welshpool is really the only settlement of note on the whole run.