The reviewer found the card basically offers Radeon R9 Nano CrossFire-class performance in a smaller form factor. That's not good considering this dual-GPU card costs $500 more than a pair of Nanos and then there's also the issue of CrossFire still being inferior to NVIDIA's SLI technology in terms of user experience. As such, the card can't be recommended to any gamer, even those with a limitless budget, but it may make some sense in the professional market:
For professionals looking to get an AMD multi-GPU configuration in their machine for development and offline rendering, the Radeon Pro Duo is an ideal solution. It takes up less space but also offers the same performance capability, and it might be easier to talk your CTO into a single expensive GPU than a pair of less expensive ones! With no similarly high-performance option from NVIDIA on the market, as there was never a dual-Maxwell solution sold, AMD has this market all to itself (for now). I do hope that developers find a way to integrate this card or any multi-GPU combination into their boxes; that is what it will take to get multi-GPU into DX12 and VR games. Experience with multiple graphics cards will undoubtedly equate to better solutions for gamers in the future.