Power on set up works fine. Be aware that the first software patches take time to install. Also allow extra time for the BIOS update to run. The screen will blank out for 2-5 minutes with no indications of it running Be sure to NOT power off during this time.
It works especially well with my HP 32-inch 4k monitor.
The system is very small, but with some extra stuff can be extremely powerful. Mine now has 64GB of RAM and 3TB of solid state disk space. The box is 6”x6”x 1.5 inches high.