I buy the Synergy Enlightened Kombucha, and the sweet fruity flavors make it taste a lot better (and it only adds about 2 g sugar). My favorite is Strawberry Serenity and Passionberry Bliss. It usually has a vinegar-like taste (like if you get the raw unsweetened kind), but I don't mind this so much because I drink apple cider vinegar on a regular basis. It's carbonated, so don't shake it around and then open it. It does have very low alcohol content and people have actually experienced a buzz similar to a glass of wine when drinking a bottle. However, it does not taste like beer at all. I hate beer but I love the Synergy Kombucha. It's ridiculously expensive though at $3 a bottle at Whole Foods. Although, I did some research before buying a bottle and if this is the first time you're drinking kombucha, start out with 4 oz of the stuff for about 3-4 days. Then increase to 4 oz twice a day then up to 8 oz twice a day. I even asked the Synergy company about this and it is also what they suggest as there have been cases of "detox illness" where your body just can't handle that much detoxification (cold-like symptoms, fatigue, headaches, etc.). Drinking it with water afterwards may also help. I drink mine prior to breakfast in the morning.
I haven't tried making my own but I think it would be good to try it out if you have the necessary supplies.
It's a little tart and mildly effervescent. Do you like, say, gingerale? You can get gingerade kombucha (GTS maybe? I forget which brand it is) that's good. There is also a citrus one that tastes a little like tart lemonade. I would try storebought before you start the process of making your own, but if you like it making your own is way, WAY less expensive.
I drank an entire synergy drink today. It was the grape flavored one with chai in it. I tried eating shortly after. I had 2 stalks of broccoli and began vomiting uncontrolably. Three hours later after a trip to the ER, I am back to normal. It was a scary experience. I'm not sure if it was directly related to the drink or not. The doctors said they weren't sure either. In case it was I would be careful with this stuff. Start out with small doses.