I only use it for 5.1 films and I'm very happy with it.
From time to time I also play music from my laptop via Bluetooth and it's just as good.

I am very satisfied so far, I have no great knowledge of the topic, I can only say that I was not disappointed with the quality of STR-DH590
Most of the time you buy what you already know.

I only need it for Sonos and use it to control 4 Klipsch speakers.
It's tiptop.

I already had the predecessor. I'm also very happy with the current one. PS, Apple TV, TV box, BLUE-Ray and 5.1 work and sound great.

Needs are individual and judgements are subjective, but for me this product is a very good fit. I use it primarily via a connected AppleTV for video and audio streaming. I only have 2 very good speakers connected and am more than satisfied with the sound