[andher]

I'm someone who hasn't used Next.js a lot, and started building some projects with it (so I don't have a very nuanced opinion).

In general, I don't use the app router because I find it has little benefit as compared to the added complexity for my use cases (mvps / smaller projects). I've been bitten a couple times by not understanding the usage patterns and just making stuff "use client", so I just started using page router again.

I assume with more complex projects it helps, but I haven't experienced it first hand

[leerob]

It's okay to make things "use client" – it effectively functions like the Pages Router but with streaming support (so better performance without you needing to do anything, basically).