Spent this weekend watching all of s3 (LOVED IT) and the first two eps of s4. I fully disliked Deborah and Ava outright hating each other, so I hope that's pretty much done with as we go into the rest of the season. It doesn't allow either to shine, and I missed their usual culture clash stuff. That said, still a delightful watch.
Deborah Vance remains one of the best TV characters/performances of the decade, and Ava is an excellent sidekick/foil.
Meg Stalter... I love "Hi gay!" so much, but I really dislike her in this. The character/performance feel like they've wandered in from another, far shitter, sitcom. However the first two eps of s4 have shown a bit of an improvement in her, and I absolutely LOVE the new assistant Randi. I hope she's permanent.