This unit was praised for functionality, but criticized for price when it came out several months ago. They have since slashed the price, and I picked it up for $340 open box, which is a great deal. The Lacie external is still over $700, and is not as fast.
Right out of the box, I was able to successfully burn a BD-RE (Blu-ray rewritable disc) with Toast 9, which I purchased separately. No drivers necessary.
Next step is to test burn a blu-ray video disc in Toast. My clients will likely only need autoplay discs, so I won't need the menu functionality of the Adobe Production Suite.