I have to say that I plain dislike this.
There’s a hard, firm edge to the taste that I find quite difficult to describe but that I find unpleasant. It’s not something different, it’s a version of the generic tea taste. I thought I’d brewed my first pot a bit too long and it had got stale but, though it’s slightly similar to staleness, it’s not really that taste. Perhaps if one could imagine what liquorice would taste like devoid of any hint whatsoever of sweetness, that would be something like it. I’ve tried decreasing the quantity of loose tea and the brewing time but it’s always there underneath.
In its defence, I have to say that the instructions recommend the addition of full-cream milk, so perhaps it’s just not intended for drinking ‘black’ – but I don’t take milk.
ETA – I should have mentioned other elements to the flavour: I get a hint of freshly-cut grass, the tiniest, faintest ‘bite’ – something like the smell of black peppercorns and not in any way unpleasant, and, strangely enough, a hint of beef.
Edited again for lousy punctuation.