I had mine for about two months last year before UPS broke the headstock off during shipment back to Alembic for a minor repair. I am waiting for a new one to be built.
While I now have a Europa-body SII, I loved the DW. It is longer than one expects so takes a bit of getting used to on a crowded stage (or living room), but the balance is great. The case size is also a consideration, depending upon what size car you drive. The weight is not much more than my SII, but part of that would relate to whether the bass has continuous wood or brass backing plates (mine were wood). Much has been posted about the difference between Signature versus Series electronics, so I won't repeat that (although I assume you could get Series electronics on a DW). I agree with Alan about the Signature electronics. He's also right on about the appeal this body style has with the crowd (and frankly, everybody).
While I love my SII, I dearly miss the Signature DW even more. In fact, now having the opportunity to have a do over on a custom bass because of the aforementioned shipping incident, I am only making one slight change, to add two very thin pinstripes to the neck.
I only managed to get a few pictures of my DW while I had it, and haven't gotten around to posting them yet, but here's the FTC thread:
Jon