Just finished watching this on Bushiroad's Youtube Live.
Milky Holmes Finale is a final sendoff to our 4 heroines and it does so in a fairly basic manner. It's similar in quality to the previous anniversary specials, in that most of the episode is just reminding you of the good old days and how funny the series was in the first 2 seasons and the movie.
Still, as the finale of the series, it works decently enough. Seeing the Feathers get mercilessly bullied is always a treat (it happens twice here too, thrice counting a newspaper clip from last year's anniversary).
And the final scene wraps
things up nicely. A nice callback to the first episode when all the Milkies finally graduated (from their attic, bad joke Milky staff). Kind of a cop out, but I'll admit, I teared up when the ED started rollling.
Don't be sad because it ended, be glad because it happened.
Sayonara, Milky Holmes.
And I'll still await the day the Glitter Green girls go on weird wacky adventures in Yokohama.