I watched it last night and I'm not sure what to make of it.
-The production values flowed like a tsunami, but the setting is sufficiently strange that I didn't feel any dramatic tension at any point in the (very long) episode.
-I don't understand the setting being the old west. I mean, HBO and the creators could have based the show on any number of historic properties or gone the totally original route. Maybe they just wanted to do a show set in the old west? I don't know, but it leaves the concept feeling thematically muddled. I mean, there are an infinite number of realities that people could want to escape into. I don't understand why they are limiting themselves to that setting.
-The sets inside the facility feel like an art installation and not a real work environment or any sort of plausible future. Very weirdly specific world-building. Why did they just show their offices and the workstations and not any of the rest of the world? I'm sure there are dramatic reasons for this (they are robots too! or something, etc), but I couldn't help but be annoyed by this throughout the episode.
-To get back to what I said about dramatic tension, how could anyone care when she swatted the fly? I mean, the guests in WW murdered dozens of robots in the episode. Given that, it wouldn't even have been shocking if a guest had been killed. It feels like Asimov without the three laws. They had a few throwaway lines about 'core programming' (or whatever), but no greater explanation about why the robots can't kill people. Or any sort of world building to explain why we as an audience should care if the 'core programming' is violated. We were given no reason to care even if all of the guests had died. Who gives a shit about the slow burn of a fly being killed and maybe an unsympathetic guest getting killed in a future episode?