just finished binging it
i can totally understand the few comments on it above, with those partyway through much happier after season 3 (low bar, granted) with the overall feel much more back to seasons 1 and 2, but the final comment above 'damp squib'
as i've literally just finished it all in one go, total thoughts not gathered yet, but my general feeling is outlined by you guys with what i've reiterated above
great characters being great again in some instances, some cracking episodes, some interesting story arcs, a return to trying to work out what's going on and recognising some flags here and there and for a while it's compelling like the first few seasons were, then it kinda fizzles out in the final act
Spoiler
the route of william and chaos i think is the problem with the final act, it just desends into a mess literally and somewhat figuratively, not done in a smart way like the end of seasons 1 and 2 which you could argue also descends into chaos.
anyway, that's my gut feeling atm, may change and i missed stuff in the other seasons, so i've no doubt missed stuff in this one, so may alter my view
oh and 'fucking campers'