I own one and enjoy it greatly.
I'm exactly 6ft and this it works great for me in this configuration: http://dl.dropbox.com/u/77657/Photo%20Apr%2013%2C%2011%2037%...
Turns out 34" is too low -- I'm 6", and it seems 41" would be about right -- so I'm using books to raise my monitor, keyboard, and mouse. A lot of books in the case of the monitor.
What can you say, though? Ikea.
I'm exactly 6ft and this it works great for me in this configuration: http://dl.dropbox.com/u/77657/Photo%20Apr%2013%2C%2011%2037%...