My buddy in Australia is thrilled with his DAB+ and he is an early adopter. He indicated that AM stereo has had a good life down there (with one single standard - CQuam) from the start, and that the music stations on AM simply migrated this stereo audio to their DAB+ transmissions.
He indicated that each market has a limited number of AM and FM stations as well as DAB+, so no worries like you'd have here in the States with pigs hogging-up as many DAB+ streams as possible to keep their neighbors out. He indicated that in Oz you have to have one of the current limited-ownership AM or FM stations to get your DAB+ stream, and like all things digital, audio is great with a few, but it you start to divy-up your digital bandwidth with mutliple streams (ala HD-2, HD-3), the digital audio turns to crap.
Also, he indicated abundant tuners all available simultaneously at the 'kickoff', portables, and at reasonable prices. Each major city had a separate kickoff date as well. Said battery life not what he would like on the portable, but that's his only beef at this point. Again, it's the programming too, not just more of the same that's enticed him to go DAB+, as they actually have 'beautiful music' stations down there on AM that sound spectacular in DAB+ (at least in part of the outback) he says. With horrible commute times in Sydney, they spend a lot of time listening to local radio for travel info.
Also, he denoted the arrival of radio satan in Oz, in the form of Clear Channel somehow being able to buy into the Aussie radio waves, unilke the USA & Canada where foreign ownership of broadcast properties is verbotton?