i've changed my opinion about it several times as well. it seems that when you're on it, you find things you don't like about it (particularly the anti-social

i've changed my opinion about it several times as well. it seems that when you're on it, you find things you don't like about it (particularly the anti-social bit). but when you're off, you can see flaws in substitutes like caffeine (legitimately turns you into an insomniac).