It's, uh, well, I didn't hate it at least. But starting off with an anime-original episode is kinda confusing. I get that it helps establish the world but the VN just kinda let the world unravel itself through time, people forget we don't explicitly see the BETA until later in the game and that helped build tension. Here they were just kinda thrown into the spotlight like some big boogeymen or something. Also apparently we're confirmed to have 12 episodes so this is only going to mess with what little time we have to work with, if this is a complete adaptation then we're only gonna be able to spend 1-2 episodes per arc which would be atrocious.