I've played it for some 30 hours together with my much younger brother-in-law at the beginning of the pandemic, and despite (and sometimes even because of) the glitches involved, we had a great time.

I think it would be a mistake to go in and expect (or demand) a perfectly polished experience. That they even managed to retrofit a multiplayer mode onto a strictly single player game is a completely mind-blowing achievement in my book - esp. given how well it works, all things considered.