Pros: This is what blissful typing feels like. Because the click *is* the keypress, there's never any wondering whether your press actually registered. After a few hours I've noticed that I'm typing more lightly and with less travel distance than before because I don't have to mash keys all the way down. My accuracy has gone up and my blood pressure has gone down. I love it.
Cons: Yep, it's loud. My coworkers are OK with but be sensitive to those around you. On the other hand, there's less key slamming (because of the shorter and lighter keystrokes) so it might not be as much louder as I'd originally worried.
Overall Review: I love this. I won't go back to a regular keyboard. You can't make me.