Jordan Parker’s review published on Letterboxd :
A bit messy in the way the plot unfolds at points, making it perhaps a little confusing as to why certain things are actually happening. However, this becomes less and less of an issue with each new viewing. Other than this, and a couple plot "conveniences," I think this movie is fantastic.
It's weird, it's wacky, it's original, and it's trying to say something (even if not in the most elegant of ways). The Nice Guys is a Hell of a lot of fun...and stuff!
The best thing in this film is it's characters and how they make you always want to see what they're going to do next. Whatever the situation, whatever the outcome...big or small, you just want to see these people doing things because you know that hilarity will quickly ensue. You could have the main characters just shopping in a supermarket and it'd probably be funnier than a lot of comedies that get made these days. The dialogue is brilliantly written and the erratic nature of both the delivery and nature of the humour often catches you off-guard and with a smile on your face.
This movie is both very memorable and enjoyable. An instant favourite. If the plot was a little tighter this would probably been a 5 star film. Bravo, Shane Black. I hope The Predator will be just as good (EDIT: eeek).