My X1100ES arrived on July 5. I've watched a few movies on it but, only one with Dolby Vision. The Dolby Vision performance viewed on my LG B7 OLED was outstanding. Unlike my experience with the Sony X800, I haven't experienced any freezing problems with this player. I intend to do an A/B comparison of Sony's 4K upconversion and that of my LG OLED but, have not done so. My expectation is that there won't be much difference.
Denon AVR-X6300H, LG OLED55B7A, Sony UPB-X1100ES, Oppo BDP-103, Tivo Roamio OTA, Panasonic DMR-ES46V, Proscan PSLD-43, Audio-Technica AT-LP120-USB
Klipsch R-820f fronts, C-2 center, R-620 surrounds and F-2 back, Quintet V for Atmos, Monoprice Monolith 10", Velodyne VRP-10