I really can't think of anything good to say about this keyboard. I've used keyboards like this, and I've damaged my body with them. You know what matters a lot more than a backlight? Ergonomic design. Get a Kinesis Advantage instead.
If only they were cheaper :/
How often do you input text into a computer (or sleep in a bed, or whatever).
What is the hourly (or daily) cost of it over some reasonable timeframe (1 year, for example).
At what price point is owning a better tool worth it? (health wise, opportunity cost wise, etc).