First of all, Birthday Cake smells amazing. A friend of mine had it the other day, and after smelling it I knew that I had to buy some for myself. It smells like an ice cream cake you would buy from Dairy Queen, which makes sense since the tea contains little bits of ice cream and sprinkles (which are no longer visible after steeping.)
I was a little bit let down by the actual taste, since the smell made me hype the tea up in my head so much. It was still quite good though! You can still taste the ice cream, and you get what seems to be a bit of a maple taste too. I found it a bit too sweet for me, but if you like sweet teas, birthday cake will be great for you.