Hello,
I purchased a Onkyo HT-S5700 HTIB unit last year. It has been doing decent well but I feel it is time to start upgrading as the speakers are starting to get a little crackly and I've had a lot of issues with receiver as well. Main complaint on the receiver is that it periodically loses HDMI signal but mostly is the lack of HDR.
I have a Sony X850C and a PS4 Pro. I've noticed in comparisons that by hooking up my TV directly to my PS4 the readings on my PS4 Pro changes and so does picture quality. When hooked up directly to my PS4 Pro non-4k content is immediately better and significantly less "gritty" in picture quality. Displaying 4k content in HDR looks amazing as well significantly better anything so far I've seen on my TV. Also the PS4 video output information reads HDR 2k/4k and color format RGB. When hooked into my Receiver my PS4 output information reads HDR on your TV not supported and color format YUV420. The picture quality reduces on non-4k, 4k, and in HDR mode it just doesn't look good. I am a little disappointed as I picked up this unit because it said it supported 4k and had a 2.2 input but it's time to upgrade.
I basically have it narrowed down to The Yamaha Aventage RX-A660/760 and Onkyo TX-NR757. Any input would be appreciated.