I have seen most of the series minus the movies since they are hard to come by. but I Can see the allure of the series. though I thought things got stale in the last 2 seasons.
I get my fix mostly from streaming services like hulu, funimation, crunchyroll, netflix. Occasionally I will watch it on DVD or VHS depending on the age of the series.
I have seen your progress of Ainz. It is pretty Impressive. I think its decently spot on. Could use some additional work on it. but Overall, I think it will be a smash now that Season 4 and the MOvie has been announced.
I finished watching the Jobless reincarnation and boy was i impressed. the Series was good. the story was very well put together with a great plot. Character development was spot on and I think the second season will be even better.
I am partial for Lord Ainz Ooal Gown. The God King of Nazarick. He is very humble and does a good job ruling over his kindom after getting isekaied. He kind of reminds me of Vlad the impailer but without the heads on the steaks. lol.