Ugh. I just had my 1 hour test on Sunday and keep checking the portal to see if the posted my results. I had the orange flavor and I highly recommend bringing your own straw; it made it easier to drink (and thankfully it was lightly chilled, too.)
Good advice above: Bring a straw and hope that it is cold (if they have given it to you in advance, put in the fridge!) Orange and fruit punch tasted fine, just really sweet while Lemon-lime was not good at all!