A game changer for me
I recently purchased the TESmart HKS202-P23 KVM. I am a network engineer and primarily work from home. Because I support multiple customers, I sometimes have to work on two computers simultaneously. Having two laptops and two monitors can work well, with one monitor dedicated to each laptop, although I prefer two monitors + laptop screen
I really, really hate typing on laptop keyboards, so getting a KVM switch was good for my sanity.
With the HKS202-P23, I can not only switch monitors from laptop-to-laptop with a couple keystrokes, it also switches my mouse, keyboard, and my BT headset.
Being able to switch this last device is really a huge help, as someone might unexpectedly call me on MS Teams on the "other" laptop. Pulling a USB dongle from one laptop and plugging it into the other, all while the call is ringing was a big pain. Once the adaptor was recognized, I could take the call on my headset, if the caller was patient enough. This KVM seamlessly allows even switching for calls.
In short, it's been a game changer for my work. The monitor switch takes 2 seconds or less. Not perfect, but swifter than changing from HDMI inputs on my monitors to Display Port. And, not everyone has a monitor with multiple-type inputs to be able to switch on the monitor itself.
I'm glad I read reviews and didn't cheap out on a bargain KVM. Those may be useful for some scenarios, but if you're professional - get a professional KVM.