Rather than a big leap forward from GoPro's flagship, it refines some areas (usability, manual shooting options) while drawing level with the Hero 7 Black in others (video quality, stabilisation).
Video quality and stabilisation match the GoPro Hero 7 Black; Front screen is a real boon for vlogging; Most user-friendly action camera around; Versatile in manual shooting mode; Waterproof without needing a case; Cheaper than a Hero 7 Black
No live-streaming; No stabilisation in HDR mode; Official accessories not yet available; Still needs an external microphone for good audio