Anybody used the SEETEC / FeelWorld 4K156 monitor before, how was it?

[IronFilm]

The large size (15.6"), high resolution (it is actually UHD! Not like these other "4K monitors" which merely mean it can take a 4K input, but are only a 1080 screen in reality), low-ish weight & power demands (2Kg & ≤18W), and various features (SDI / quadview / PIP / etc) all make it quite appealing for the low price of around US$600!

http://www.seetec.cn/ShowInfo.aspx?id=190&py=SEETEC-15-6-4K-Broadcast-Monitor-with-IPS-UHD-3840x2160-4xHDMI-Quad-Split-Display-4K156-9HSD