I don't own one, but I know a lot of people on here use them that are far more experienced than me. I highly doubt it will affect the taste of your beer. I use glass carboys and its only because.....its all I can find in my LHBS, haha. But as far as what I have heard, the only difference between the two is that glass is heavier and less durable to falls and whatnot. Otherwise, either will work just as good as the other. Try one out and see what you think.