Just had a midweek break in South Wales and I have to say I did not find the 20mph speed limit a problem. I appreciate from other forum articles that this is not the view of others who have visited, however, in the Merthyr, Cardiff, Barry Island area everywhere that dropped to 20mph seemed entirely sensible, much like you get outside schools in the UK and villages in France. They know they will get some wrong and some roads will be adjusted up or down. There was only one occasion, on the way into Barry, when we thought this is crazy, however, much busier on the way back and seemed entirely appropriate. Came away more impressed than distressed