As others have said, a full size HDMI port would be nice. However, I've been very satisfied with my JetKVM. I was about to order the GL.iNet KVM they just launched, but I ended up picking up another JetKVM now that sales are open.
My use-case is that I have it connected to an Raspberry Pi which I use to test the RPi builds of my application. I just ordered a second to connect to a mini-PC which is the minimum spec supported by my application. It has made my testing experience very smooth.