Mark Perigard in the Boston Herald:

Don’t think for a second Don’s gone soft.

He still uses his power in the office to get what he wants — oh, there I go, treading perilously close to revealing a spoiler. Creator/executive producer/writer Matthew Weiner and AMC are so paranoid about leaks that they have forbidden reviewers to divulge even the year.

Here’s a hint: It’s still the ’60s (agreed, duh) — and miniskirts are in, in a big way. The title of the two-hour, fifth-season premiere, “A Little Kiss,” deserves credit for its understatement, if nothing else. It features perhaps the most risque cleaning scene ever filmed for TV.

Go over there to check out the video review of Season 5.