have now 2 of these switches in daily use (one for 6 months the other for 1 month). My Social Network: a Fritz box star shape in different rooms (office + living room) distributed. In AZ and WZ I now use the two switches to multiple devices on the LAN to connect. As far as the two devices do exactly what you would expect - to enable fast LAN access.
Both devices run with GBit Ethernet and are hardly warm. So far I have not had a problem and had never even reboot.
That's how it should be.