It's a standalone company now, last I checked they only sell in Japan; but I loved my Z Series so much I had to poach another one when the old one gave up the ghost.
I can't forgive them for the interior design, and how the lynchpin of the entire laptop is a PFC with two of the most awkwardly placed sockets I've ever attempted to repair; but I'll be damned if it isn't one of the most pleasantly ergonomic laptops to use.
Just try to avoid having to open up the case at all costs.