I very excitedly tried Pepsi Aha, the lemon flavoured Pepsi but was really dissappointed. The fiz which is the most important part of these cola drinks is missing. The strength of the drink thus suffers. Its like a poor cousin of Pepsi. the lemony taste is there and it quenches your thirst but there is nothing special about the new drink.
I was impressed by the ads and tried it mainly as a new offering and a new taste but I dont think it makes any sense to buy this one.
Actually if someone wants the lemony taste one should go for the Lipton Lemon flavoured Iced Tea. It is really great, a healthier option, very refreshing and value for money at 15 bucks a glass.