Ignoring for a moment the tranmsission quality and the program material, I am still dubious over the alleged technological advantages of DAB. I still have a marginal DAB signal in my house, although FM is fine, and I was pondering the issues recently as my new car has been without a radio aerial for the last week. As a result FM was very patchy and hissy, and would drop out briefly on occasions, but it was just about listenable. However, DAB would have been completely silent in these conditions, in the same way that digital TV in our old house completely vanished if it rained, whereas the old analogue signal was always there, just a bit 'snowy'.
DAB to me is not an example of technical progress and, as an engineer, this irritates me. The word "digital" is not a synonym for "better", but too many people automatically think it is.