IKR! When I first read about it I literally had a gag reflex in the library!
But kefir is pretty good. I had it straight even though I was sure I would hate it... and it's not bad at all. I even accidentally left the old jar unwashed for the day and it still smelled good, even though it was in the fridge for maybe two or three months, and then left out on the counter for the day. It smelled like fresh yogurt.
I had another batch today with a teaspoon of lime juice and liked it a lot.