Summary: Couldn't be more satisfied. It does exactly as it was advertised to do. I am using it on 2 machines, win7 and win8. Only drawback I am experiencing is when switching from win7 to win8 i have to reset resolution every time but this is NOT a problem with the IOGEAR GCS72U KVM switch with audio, it is a problem in my settings somewhere. I very highly recommend this product to everyone.
Summary: I wasn't ready to let go of using some of the programs on my Windows XP, yet I knew I had to upgrade to Windows 7 or 8. I also love my 2003 NEC MultiSync monitor. I researched online and the IOGEAR GCS72U KVM had the highest marks from customers. So I unplugged my Ethernet cable from my Windows XP, purchased a refurbished Windows 7 Desktop, and hooked up this switch. It also allows you to use one mouse and one keyboard for both computers! I couldn't be happier!!!!
Summary: I use two computers, and have a mess and knots of wires moving keyboards on my limited desk space. This device allows me to use one keyboard, one mouse, and one monitor. I was pleased that everything just works. Only negative and this is not really a negative is You must use a USB keyboard.
Summary: I also gave the TK-209K 5 stars, but this IOGEAR is better. The cabling system on this unit allows you stash all the ugliness under your desk because you have a remote for switching. Whereas the switching for the Trendnet version is on the unit itself, so if you want to hide all the cabling, you'll need to bend down under your desk every time to switch. The price is approx the same, but I would have paid an extra $10 for this IOGEAR's cabling system alone.