The last season has only ten episodes, but it took me weeks to get through it and finally watch the last episode. It wasn't the best season, but I can say the finale was satisfying.
Spoilers below.
[Spoiler (click to open)]I was worried that both Lucifer and Amenadiel would stay on Earth and live like ordinary human beings, so I was glad that they stuck to their celestial roles. Since season 5, it was obvious that Amenadiel should become God - which turned out to be more like a function than a person. The original God was wasted as a character, and now I think it would be better if he showed up only for one or two scenes, said "you figure it out" to Amenadiel and Lucifer, and disappeared. I like that Amenadiel realised he can rule with his siblings. The writers could base it on his work in the police - his job never made much sense, but they could make him see how a good team with the same aim can successfully work. Too bad they made him fighting racism in the police instead.
Lucifer's role is even better - he came back to hell like he was supposed to since the beginning, but he realised he could work with the damned souls and bring some of them to heaven. I read that hell as therapy isn't a new concept, but it is pretty new to me. No one is damned for good and hell is more like purgatory where you work on your problems and hope that one day, you can find peace. Isn't it better than eternal pain and fire? Why does the church keep scaring us the vision of demons torturing people, with no chance for salvation? I believe there is a place for christianity in XXI century, but it has to adapt for modern times and change its black and white vision and psychology from medieval ages. "Lucifer" adapted some biblical characters and themes pretty well. "The Goddess" was a failure, but the series made a nice comment on Adam and Eve, even if it has subtlety of a road roller. I wish they did Jesus, I am really curious what they would come up with.
I didn't like the idea that Chloe had to sacrifice her happiness for Rory. With a series that progressive, a mother sacrifying for her daughter feels few steps behind.
"Lucifer" is a weird series. It changed many times, sometimes it was a classic procedural, sometimes a celestial soap opera, sometimes there was logic in it and more often no logic at all. It had some great characters and some really bad. But something made me come back to it and I'm glad it left me with a feeling that I was told a story that meant something.