For whatever reason, the last wave of episodes put me off a lot. I can't remember them (beyond Ted Danson giving some gatekeeper guy a gift? And Adam Scott in a few), but they just fell totally flat for me. Actually unsure if I saw the 2 episodes that aired after christmas....
Yeah, I rapidly lost interest in it during this latest run. Turned out to be a show that was completely dependent on having an interesting and surprising plot, and when that kind of fizzled out at the start of Season 3, the characters just weren't interesting or funny enough to sustain interest. The tedious sub-plot where they were going around trying to help people from their lives get into the Good Place was the point at which I checked out completely.
I might try and watch it again though, given that they're ending the show after the next season, because at least then there's a chance it could become tighter and more focused again. It really did feel to me that during the third season they were just dragging it out as much as possible. And I really did enjoy the first two seasons.
Edit: I did actually watch the multiple Janets episode though, because people were raving so much about it, and that was very good.