I'm amazed at the level of improvement of this season. There were times when I felt the writers were "moronbaiting" us, like they wanted us to believe that the characters were going to act like total morons, (as they used to last season), and then they surprised us by acting like people with operative brains. Well done, really.
I still don't like Ella as a character, who still feels a bit forced to me, and her relationship with Dan was my only "ugh" moment in the whole season, but everything else was brilliant. I loved that Eve never became evil: she was naive and a bit irresponsible, but she never had ill-intentions. Pity that she didn't hook up with Maze, but the writers left that door open, so it's fine. Ditto with Luci and Chloe. I'm a low-key shipper, but if the show ended here, I wouldn't consider it a bad ending: they love each other, but the relationship between Lucifer and a motal woman was never going to be conventional.
Glad that Amenadiel didn't take the baby to Heaven behind Linda's back.
I had a wtf moment when Linda said they had hired someone to take care of the baby at night. I see the logic behind that decision, but I've never seen anyone doing it in RL. Either you've got enough money to have a full-time nanny or you stick to relatives (most times, though, parents suck it up).
So, kudos to everyone in Lucifer, I really hope there's a fifth season.