Netflix’s adaptation of Lemony Snicket’s A Series of Unfortunate Events needed to see its story through to the end. The third season based on the 13-book series is its best yet, with a fantastic sense of pacing, every opportunity taken to indulge in a bit of fun wordplay, and its continued, incredible ability to set up moments of joy only for the realities of the Baudelaires’ world to come crashing down around them.
Adapting books 10-13 — The Slippery Slope, The Grim Grotto, The Penultimate Peril, and The End — Season 3 picks up from Season 2’s literal cliffhanger (Violet and Klaus hurtling off the side of a cliff in a runaway cart) and almost never lets up its pace. Even though emotional and narrative payoff obviously doesn’t come full circle until the last few episodes, the four episodes adapting Slope and Grotto do a surprising job of being both satisfying in their own right and in how they integrate the overarching story.
Source: IGN.com Netflix's A Series of Unfortunate Events: Season 3 Review