Avoid.
Was out last night unfortunately got DD'd so in the restaurant asked if they had any NA beers, they only had Cobra. Cobra regular is reasonably drinkable, so I figured the NA would probably be all right. Thankfully it came in a 330ml bottle (with a glass of Ice also!! - which I used for the water jug!) and not a 500, as never before have I experienced a beer which has an aftertaste of ... MUSHROOMS!
Quite revolting. Stay away. I'm cautious of NA beers at the best of times, but from now on I'll stick to Erdinger or water i think