Doesn't water taste better if you drink it from a glass instead of a plastic cup or bottle? I really think so. A Nalgene definitely has its merits (mine glows in the dark!), but I adore drinking from my bkr.
I've had the red one for about a year now, and I absolutely love it. I highly recommend. If you're interested, you can find it at bkr or amazon. (God knows I don't need another water bottle, but I love the lush color!)
P.S. If you happen to break it within 90 days, bkr will replace it for free. Cool!