
Not bad, but there are a few serious bugs. We have about 10 in the office and all of our systems have two monitors in one system and at least one in the other. Not a single person has said it works perfectly, but most continue to use it, so overall it's serviceable. Pros: Allows mouse/keyboard control without KVM. Allows copying files without switching USB sticks back and forth, fairly fast (mostly) transfer speed for USB 2.0 clipboard copying between computers. Cons: With multiple monitors, the primary monitor works fine, but the secondary monitor sometimes or sometimes constantly doesn't receive mouse clicks or keystrokes, which is very strange. File copy performance is sometimes slow. Doesn't work at all on someone's system, maybe a problem with Windows, files on the flash drive do not appear. Even after we downloaded it from another source, the device was not recognized. I've spent a lot of time debugging it but to no avail. We are a group of hardware and software developers with deep knowledge of USB and other protocols. In relatively rare cases, the system may freeze. Disconnecting/connecting a USB device from the USB port allows the system to function again. One person randomly had a mouse switch to another system and decided not to use it at all, but no one else noticed this behavior. YMMV. you pay for it Although it would cost a lot more if it worked consistently and flawlessly.