There is a history of literally many years of bombastic claims being made by D-Wave (especially in the popular press) without anything to back them up. Scott Aaronson (http://www.scottaaronson.com/blog/), an MIT professor who is one of the better-known scientists in the quantum computing field, has written reams of pages about this. I would recommend browsing his blog if you are really interested in the claims and counterclaims about this company.

As for me, I will not waste a single minute reading an article about them, until they can convince the sceptics first. This may seem unfair (if people aren't willing to give them a chance, then how will we know if they've really made a breakthrough), but this company has earned this kind of treatment by bamboozling journalists and getting breathless press coverage based on nothing. Briefly, for years, they failed to even demonstrate that their machine exhibits any quantum entanglement at all; this makes it meaningless to talk about quantum computing on that machine, which didn't prevent press stories touting it as the next revolution in all of human existence. Since then, there have been some articles claiming that possibly there is some kind of quantum behaviour in the machine, but there was still no evidence that this quantum behaviour is doing anything meaningful in the actual computations. At some point, I stopped following the story.