Ignore season 6 (before season 6) the series does Eventually get's too emotional and boring to my opinion... but it's sure as hell a must watch and gives a very good perspective to the world we live in and the path humanity takes.

But man season 6 annoys the hell out of me... not because it lacks technology of futurism but because it's lost it's soul it's meaning too. You can take away the elements that made the series great the motive the setting the character and style of the series and you end up with something that's "ok" not great but fine however loosing the spirit the soul the point of the series and that's it

season 6 is an entirely new tv show forcibly shoved into this ip it lacks not only the style the character and soul but also the meaning the point the entire foundation

you can take away the scifi from a dystopian scifi series and still have something decent you take away the dystopia and you're left with nothing with absolutely nothing not even a shell of it's former self since all the episodes are standalone and you take away all other elements.