I started using the VSX-LX505 January 10.
Equipment connected to the AVR is ... LG C2, PS5, Xbox Series X, Roku, Sony BD player and a computer is connected via LAN for music and the network interface.
Speakers are all Klipsch ... RF83, RC62, RS42.
The Harmony programming app for the Harmony One remote has the 505 in the data base, but there are a couple of missing functions.
To get going and evaluate the AVR I used the MCACC to set levels and distance.
It did a good job with that, pretty much the same as the old VSX-23TXH and very similar to the Denon x2200W.
The HDMI 2.1 features work correctly with LG C2, PS5, and Xbox Series X (hooray).
I like everything going through the AVR to the TV much better than having the consoles connected to the TV and using ARC for the audio. The CEC was always messing with me while I was using the Denon AVR.
My wife and I both think the sound is very good, we have settled in with pure direct mode.
I have not messed with Dirac yet.
I will get around to it soon enough and see if it makes a positive contribution to the experience.
We are well satisfied with the sound right now.
It was reported on the ASR forum the nanny circuit kicked in during the power sweep test, I have tried very hard to make the nanny circuit kick in using music but I was not able to make it happen. I do not think anyone playing real world content will have an issue with the AVR suddenly throttling the output.
I just did a hiss check by turning the volume on the AVR to maximum and putting my ear in the tweeter of one of the RF83 speakers.
I am 64 years old so if you have young pristine ears YMMV on hiss detection but as far as I can tell hiss is virtually inaudible with my ear right at the tweeter, and moving a couple inches away I cannot hear it at all.
My wife never said anything about the front inputs on the old Pioneer or the Denon, but she did ask a couple evening back if this one had any front inputs and when I showed her they were behind the door she said she liked the clean look with the door a lot better than the other AVRs.
I like the VSX-LX505.