I've got one, and it does taste like plastic more than my nalgene does. I keep a 3.5 gallon water dispenser by my desk, I usually go through one a week or so.
I'm currently somewhere between 6'1" and 6'3", and weigh in at 155 pounds. Not happy with it, though, because I have a very thin frame, so while for the most part I look skinny, my belly is larger than it should be. I want to put on weight, but replace some of the fat I have on my stomach and legs with muscle on my stomach and arms. I used to lift weights when I was 10 or 11, just legs, I was able to do a set of 410 pound leg presses in 6th grade, but after the machine ran out of weights to add, I got bored and got in worse shape. I need to do more bicycling, when the snow is gone and the weather is warmer. I used to get a good work-out on my arms and my legs with that, because I would be pulling at the bike with my arms to keep it more even when I was stomping on the pedals in the highest gear to get moving.
I think I'm going to mainly do sit-ups and push-ups, I used to do sit-ups a lot as well, but I have very weak abdominal muscles right now, so I need to get consistent. I'm going to mix in some work on the weight machine as well, someone ought to get some use out of it. I've been meaning to do it a lot for the past few days, maybe this will actually get me to do it.
I would also like to emphasize how good it is to eat frequent small amounts. I subsist on snacks pretty much, but they are usually more or less healthy, I think that along with my youthful metabolism is why despite being so sedentary, I have only gained 10 or so pounds in the last two years.