Xiaomi is doing really well the last couple of years. I am a fan of their products and have quite some of them already at home. Not always easy to buy them as most of them are not for sale on the European market!
Their latest cooperations with google like the mibox and 360 vr camera really show that they are stepping up their game and are no longer just a cheap Chinese tech company.
RE: Facebook, Oculus Go will be built by Xiaomi