Just watched this. A few points:
1) Orange girl, Sputnik, was cool and interesting in the 4th season, I really liked her character. In the PK wars she was more aggressively hot (and only barely looked nicer than before
) but was a 1 dimensional yes man for scorpius. None of the characters depth was brought across, sadly.
2) Chiana looked slightly different. Probably makeup issues.
3) D'Argo's death was great. Just... what the character deserved I guess. One of the best characters in the 4 seasons, with a fitting end here.
4) That 2001 reference at the very end, the white room as john finally purges Harvey, was SO FUNNY. I nearly went into hysterics at it.
5) Having the ebil nurse being the nicey nicey leader was rather wierd. Kept expecting her to break out the stabby tools.
Overall brilliant. Lots of cool action, a really thrilling finale (who else wondered if john was gonna lose it and end up suiciding with that wormhole weapon?) and a truely fitting end to TVs best.