This is great especially when it is run and develop by a team of adam todd also known as one of the founder (CEO) of steemit one of his successful tokens. This should be legitimate although im not forcing to invest in it im just recommending that your money and your effort is in good hands, just do it in your own risk.
It does seem like a great new exchange! The ICO is happening soon but I'm not telling people to invest in it (although I will be), but they can still claim their free 1,000 DGTX!