Really enjoyed Legion!. S02 was especially trippy, but was still interesting/compelling. In fact, S02 may have been even better than S01, but it was also a lot more confusing & convoluted.
One of my favorite scenes of S02 was towards the end, when David was lip-synching?! The Who's Behind Blue Eyes, as he was heading to the final?! confrontation.
Legion S03 was incredible (but not as good as S01). Incredible, and an amazing finale to the series. Really enjoyed the convoluted (in a good way) time travel elements, the trippy & unusual visuals, the 1960's/1970's pop/rock songs & how they were incorporated into the scenes, etc.
Pink Floyd's The Wall is one of the best rock albums ever made/produced; the film of the same name (1982) was amazing as well. And, I liked how the iconic song Mother was used in S03, with David lip-synching?! to the song - very relevant to that particular scene. Among others, I also liked the use of Peter Gabriel's Games Without Frontiers; The Who's Happy Jack; A cover?! of Cinnamon Girl; cover(s) of (What's so Funny 'Bout) Peace Love and Understanding, etc.
Re: the visuals, too many interesting ones to mention, but I was especially impressed by:
-the way the 'opening' credits of each episode used different elements to show the word "Legion"
-the kaleidoscope scenes/effects
-the closing credits with the various colors, etc.
There was obviously a lot of creative & difficult work, effort, and also a lot of money put forth in producing this series. Kudos to everyone who worked on this. Legion was a true work of art, and I don't say that lightly.
I only wish that S02 - S03 will be put on Blu at some point. S01 was on Blu & looked great, but S02-S03 were only put on DVD-R - and both of these latter seasons could stand a lot of improvement re: PQ.
I will say that the DVD-R cover of S03 is definitely one of the best covers to a TV show/movie I've ever seen - truly amazing.
Though it's probably already been noted at some point, it's worth mentioning that the female character Sydney Barrett is obviously an "homage" to Syd Barrett, one of the early/founding members of the UK pop/rock group Pink Floyd. This goes along with the late 1960's/1970's-inspired fashion/hair & psychedelic/trippy vibe of the series.