As the summary/title states, I don't own an Xbox One, though I am starting to consider purchasing one. The last three consoles I have owned are a Wii U, Wii, and Gamecube to give you a hint as to my preferences. To that point, I bought this controller because I wanted to use it to play No Man's Sky on a Windows 10 laptop, and also some games that support a paired controller on my Surface 3. I was actually seriously considering getting the Wii U Pro controller, as I had read that you MIGHT be able to pair it with your PC, and I could then also use it with my Wii U, but after reading more on that process, I felt it was too uncertain that I would be successful. Conversely, I wondered if it was really as easy to pair this controller as they say it is, and I have to give them credit - it really is. You have to connect it via USB the first time, using a cable that has microUSB on the controller end (luckily my Surface 3 came with one for charging), but after that it will be able to pair wirelessly with relatively no problem. I've had some instances where the controller loses connectivity mid-play in the past, but I believe a driver update rectified those issues.
As for the controller itself, it is a quality product. It feels sturdy, the buttons and sticks have an adequate amount of resistance, and the materials feel premium. The back has a texture that, while ergonomically pleasant, will also assist in making sure it doesn't slip out of your hands during particularly intense play. It also looks really classy in white, though there is reason for concern - over time dirt and grime could affect that gleaming body, or the color could yellow down the line. Time will tell, it hasn't really been available long enough for something like that to become evident. Again, the quality of the plastic makes me feel like this won't happen, but it's worth a mention as a possibility. Cleaning the front portion should be pretty simple, though the textured back could cause more dirt to build up without routine, and thorough, cleaning, depending on how often you use it.
Battery life seems to be incredibly good. I will admit that I don't use this controller as often as others might, but it seems ready to rock any time I pick it up. I've had mine since mid-August and I don't think I've changed the batteries yet.
In conclusion, if you're looking for a second controller for your brand new Xbox One S, this is a no-brainer, but if you're looking for a high-quality controller to use with a Windows 10 PC or tablet, you should seriously consider purchasing this item, I seriously doubt you will be disappointed.