What Miracle Fruit does is completely eliminate our taste buds' ability to perceive bitterness. So anything bitter tastes sweet. What's amazing is how incredibly much this changes the taste of every day things. And it really works! We sucked on the little tablets, which tasted a bit like chalky sour-apple. But the more we sucked on them, the less sour they tasted. When it had finally dissolved, I cut apart some lemons and limes and, with a little trepidation, ate a lemon slice. It smelled exactly normal - but the taste was incredible! It was perfectly sweet and deliciouis, like really good lemonade. It still had all the citrus zing of lemon, but it wasn't at all sour or bitter, not even a little. Further experimentation found that pickles were like sweetened cucumbers (and kind of gross, in my opinion, though PQ liked them.) and were more like bread-and-butter pickles than a garlic dill, which is what they were. The limes were just as tasty as the lemon, though in general i preferred the lemon. Wine - we had a white sauvignon blanc - was sickeningly sweet. The horseradish was especially weird - it was still HOT like horseradish is, but was also very sweet. It's hard to describe exactly what that tastes like, it's unlike anything you've ever tried before. (Probably. But arya will probably have tried some weird ethnic dish which is just like that, only better.) We also tried some hot sauce, to much the same effect.
Of course, after sucking on lemons and eating sour, bitter and spicy foods, my stomach wasn't too happy with me. But those lemons really were delicious! It took at least an hour for the effect to go away, and even so things tasted extra sweet for most of the rest of the evening. I'd read about this effect on line, but had to try it myself to see. But it really was weird and remarkable - it really works!