I mainly use this dongle exclusively with my Turtle Beach Stealth 600s when I want to use them with a PC instead of my Xbox One X. Supports Windows Sonic and Dolby Vision for Headphones surround modes (the latter requires you to purchase the app, but it's inexpensive and can be used on up to 10 Windows 10/Xbox One devices, so it's worth the investment). I watched Guardians of the Galaxy Vol. 2 via Netflix and was blown away at how good it sounded.
My one complaint is that the dongle itself is physically too big and looks really stupid sticking out the side of a desktop or laptop, but MS was ingenious enough to include an extension cable so that you can more easily place the dongle near the PC where it will get the best reception and/or tuck it away from sight. In the case of a desktop it also allows you to hook the dongle up via a rear USB port and free up one of the precious few ports that desktops usually have on the front. Absolutely worth the money.