I typically buy the regular green tea but when I saw blueberry I thought, this sounds interesting let's give it a try!
Let me tell you, the blueberry adds nothing good to the flavor and I will be continuing to buy their regular green tea product.

Tetley Blueberry Green Tea;

great tea for those who enjoy blueberry flavour and scent along with the benefits of green tea!

Green tea is soothing, good strong presence with the flavour and scent of fruits while drinking.

Good for those who do not like the bitter taste of green tea, but enjoy the tea's benefits.

Blueberry scent / flavour is strong
fills up a room

I am a huge fan of tea in general, and green tea is one of my favourites, but I was not a huge fan of this one. At first the delicate blueberry taste was quite pleasing, and sweet enough that I didn't need to add any sugar. But once I was about half way through the cup I was sick of drinking tea that tastes like the taste in your mouth after you have blueberry flavoured bubble gum. My boyfriend nicknamed teas like the one with unnatural flavours "science tea" and I think that is a perfect description of this particular flavour.