I put bamboo floors into my whole house in 2004 (we've since moved, and now keep that house as a rental). Back then you got it in "natural" or "carbonized" and "vertical" or "horizontal". There were no stains or fancy stuff, it was pretty basic. We put in "carbonized vertical".
It's truly a beautiful floor, but we did make some mistakes. First of all, we should have gone with a pre-finished product. Instead we put it in raw and had it finished on site (don't know if you can even do that anymore). The process took a long time and parts had to be redone. We'd been told that bamboo was as hard as oak or maple. NOT when it's been carbonized - it loses some of its hardness. So the first night we were in, our child dragged a cardboard box across the floor and unfortunately, on the underside were a couple of staples holding the box together...yep, a nice long (but very shallow) scratch in the floor. Our furniture placement covered it, but *I* know it's there and it bothers me a bit. And all in all, the floor *does* scratch more easily than I was lead to believe.
BUT it's easy to keep clean and it is REALLY beautiful. I'm actually planning on putting in bamboo in my current house when we start our remodel. But this time, I'm putting in "natural" with a dark stain and it'll most likely be "horizontal" because I haven't even seen "vertical" recently.