Since the days of the NES, most every successful gaming console has basically been released twice. You'd get a big, loud, and expensive box at launch, then a few years later, a smaller, quieter, lower-cost version would show up.
Quieter than the OG Xbone, even at full tilt; System optimizations make current games look their best and shorten load times too; The new Xbox's 4K HDR abilities are promising with more impressive games in the future; 4K/UHD Blu-ray drive is a boon to connoisseurs of physical media.
Expensive compared to the Xbox One S and PS4 Pro; Rectangular, matte design is functional, but not beautiful; Lack of VR to tap into this powerful hardware is disappointing; Games will take some time to fully exploit the X's 4K graphics via updates; No true remote game streaming, still.