I’ve been excited for this product to arrive ever since the Xbox One controller was released. The Xbox One controller feels much better than the 360 ergonomically, and I wanted to make the switch over when playing games such as Rocket League. In the meantime, I’ve sufficed by plugging in via USB cable, but if I stream from my TV, it’s much more difficult. The USB dongle is big, I’m not gonna lie. The nice thing is that it is slim, so you won’t have issues plugging in other USB devices next to it if they’re in vertical parallel but it’s definitely long, and a little wide. Looks like an older USB wifi dongle. I had to remove my Logitech dongle to fit it into my laptop, where they are all horizontal in series. Note, there is a USB extender cable included in the box that you can use to prevent this issue. I would actually recommend using it, to prevent any potential interference from being plugged in close proximity to other devices. On my desktop, I was connected via USB 2.0, on my laptop I was connected via USB 3.0. I noticed no difference in performance, the dongle worked on both ports. After plugging the unit into my computer, the drivers installed automatically. I restarted for good measure, then pressed the sync buttons on my controller and the dongle simultaneously. White light flashes while searching, then goes solid after paired. Same went with my controller. You can do this to connect multiple devices. It does NOT disconnect currently connected devices, they remain paired. I tested using Rocket League (pretty much the only game I’m going to be using right now), the device worked flawlessly without any issues for me. Moving to my laptop connected to my tv downstairs, I comfortably played again at a distance of ~15 feet from the dongle with no issues, either. Again, the laptop is running Windows 10. The controller will automatically sleep after inactivity, just like a 360 controller. Merely press it and it’ll wake up and automatically connect to the dongle again, no problem. My computer makes a connection sound when it detects it’s woken up. Pressing on the home key with Steam running launches Big Picture mode. I have literally only owned this product for less than an hour, but so far everything is working swimmingly. • I am using Windows 10, as it is a stated requirement for the dongle to work. So if you are using 7 or 8, be prepared for incompatibilities. I tested on my friend’s desktop running Windows 7, and the drivers would not install. • I used an Xbox One controller (Titanfall edition) – I did try my 360 controller but it did not work, as was expected. • Everything worked out of the box for me. After the driver installed, I did restart my computer before trying to use the controller. • Controller works fine at least 15 feet away from the dongle. I did not try further yet. • The dongle was not loose in the USB port, as another user commented. It does ‘shift’ slightly, but there’s no worry of it falling out or losing connection randomly. I will later test to see if this is compatible with my Steamlink, and update accordingly. I see lots of people disgruntled that it's only compatible with Windows 10, and that it's a surprise. Read the product description. It says it's only for Xbox One controllers and Windows 10. Seriously people, read!