Microsoft produces fantastic quality hardware despite being mainly know for its software.
This keyboard is similar to many of its others, great compatibility - not only with its own operating system (I have tried it with Ubuntu too). The keyboard is lightweight for partability but also is not too lght as to slide when typing. It is perfectly weighted.
The curve, although only slight, can take a while to get used to however. I still haven;'t fully managed it and I have had it a few months now. I am even using it to type this!
I do occasionally catch the wrong key, which is something I do not really do with a straight keyboard. With a regular keyboard I type around 60 words per minute but only reach around 50 word per minute with this keyboard. The curve is designed to reduce the chance of repetitive strain injury though and therefore could be worth the loss of 10 words per minute.
*Also on ciao