2015 13" MacBook Pro [5th,2C,U] + GTX 980 Ti @ 16Gbps-TB2>TB3 (Razer Core) + macOS 10.12.2 [fattymax]
Everything is working fine with the Node. I've even tried to crash it - hot plug, restart - still connects every time. Good results with Unigine Valley Bench. Left is Iris Pro on mid-2015, 15" Retina display, right Dell 1680 x 1050 20" display.
The only consistent hiccup is on restart, I have to restart again. On the first restart, it shows the NVIDIA Chip Model. On the second restart, it recognizes the GPU as the 1080 Ti.