Hi. My tongue kind of felt sore. I took it back to the shop when it stopped working. The guy said it was the coil and sold me a replacement and spares. Up to that point I didn't know I had to replace the coil!! Someone at work told me I should have known as the liquid would taste burnt, but I've probably destroyed my taste buds from years on the cigs.☺
Your taste buds will return. It takes a while and many vapers go through a bad period of 'bland' taste (vapers tongue) starting a few weeks in. I used Menthol flavours and sickly tobacco mixes (RY4, RY6, caramel or licorice) to get me through.
What shop is it? A general independent e-cig store/vendor or a brand type shop?
Totally Wicked is what I would call a brand shop (or VIP, Vapouriz, or JacVapour).