The stuff that matters! Game reviewers have had working Xbox Series X devices in-hand for days. Reviews dropped on YouTube today.
CNET, The Verge, etc. They’ve all got hands-on previews of the Xbox Series X as we speak. Backwards compatibility, high frame rates, fast loads, and quick resume are the highlights. No actual Series X games tested yet. Just Xbox One games (as well as Xbox 360 and *ORIGINAL* Xbox games), many of which benefit from high resolution patches.