I bought this wanting to have a 3 monitor setup with my home office. My primary monitor is a 40-inch, and this works fine 2with it, but my secondary is an "AOC 2252W", which I found out the hard way that this monitor will not work with. I am temporarily having to use another MiniDP adapter directly from the Surface Pro 3 to be able to connect my tablet to my AOC monitor.
Doing a little digging, I found out it's because the refresh rate from this adapter is not 60Hz, but a variation of 59-something Hz. I did have success using this with my LG monitors at work, so I would recommend if you have decent monitors, this should work just fine, but if you have an AOC monitor, beware.
I believe it is the perfect companion to the Surface 3 Pro docking station. I have it working with one HDMI and one DVI monitor using conversion cables (they must be passive!). Works flawlessly.
I bought this for my Lenovo Thinkpad 460s and it works great. I was able to connect my 2 HP monitors to the hub and also use my laptop as a 3rd screen if needed. It uses the Mini DisplayPort and a USB port, but it doesn’t bother me since I have 2 other USB ports on my laptop.