Pros: It's small, sexy, simple, well-constructed, quiet (due to the sides of the case being made of two thin layers of aluminum sandwiching a thick layer of acoustically dead plastic. PSU fan is fairly quiet - I've replaced it with a Nexus), easy to take apart (only takes a thumbscrew and tab-pressing to open it up - after that you need a screwdriver), can hold up to three HDDs, and comes with a rock-solid PSU.
Cons: It's small (sometimes difficult to work in) and hot (unless you mod
it like me). My mod brings in a ton of dust. The aftermarket CPU and GPU coolers block two of the HDD spots. PSU is probably too weak for more powerful components than mine.
Works for me!