Raw apple cider vinegar, with the 'mother' in (strands of the live stuff created during fermentation) is supposed to be very healthy (at the other end of the vinegar spectrum from white vinegar, which is good for cleaning and disinfecting, but not great to ingest). I've never seen recommendations to guzzle it straight, but it's often diluted in water (maybe 1-2 Tablespoons of vinegar in a glass of water) with a sweetener. My bottle of Bragg's ACV recommends drinking 1-2 teaspoons in 8 oz. of water, with optional sweetening with 1-2 tsp. organic honey, maple syrup or blackstrap molasses, or 4 drops of stevia. I don't see how it would taste any worse than lemonade!
But, as others have said, you can also get the health benefits by using it in foods (as long as you don't heat it): making dressings or marinades.