Went through Sleepy Dawgs last night again... did all the main missions in one 4 hour sitting.
The best part of the story is really the pacing... it's one of the best 'movie stories' in an action game IMO. The main missions (so not every required mission but basically all those important to the story) being 5-6 hours kinda highlights how Sleeping Dogs is basically paced in Infernal Affairs parts 1 and 2... (the movie that The Departed was based on).
Most of the missions are a fast taut and satisfying 15-20 minutes and the story doesn't waste too much time at any given point in the plot. A lot of games may take longer trying to develop things... e.g. We need extra missions to try show that Wei Shen is earning face with the Triad; We need extra missions to build up a relationship or a death.
Sleeping Dogs and characters like Wei Shen, Winston, Dog Eyes, Peggy, etc are a perfect example of fast pacing that still creates 'attachment' -- or what better described as movie-esque emotional response.
If something like GTA V is essentially a better example of a drama that spans numerous episodes and perhaps even has 2-3 distinct seasons, Sleeping Dogs is paced like a movie.
One other thing that I've found on revisiting the game recently and also last year is that it's actually surprisingly gorgeous and enjoyable HUD-less. Which is more difficult than most games because of its QTE and waypoint reliance, and there's no HUD customization (just an off/on toggle).
But combat...
shootouts:
https://youtu.be/FnaXq_x36VE?t=4664
and melee:
https://youtu.be/FnaXq_x36VE?t=1093
...Look and feel great without a HUD and the gunplay (with its added inaccuracy) is actually somehow more satisfying and looks even better... seriously, if you own the game, give it a try... turn off those ugly crosshairs and go try one of the shootout missions HUD-less.
Not to mention the city in general:
https://youtu.be/0NbCtRJ1CF0?t=509
Such as night market neon, just looks gorgeous.