Because most of you seem convinced it's terrible and you have not even demoed it.
So it seems like pitching water to a well...
Some of the responses of those who have demoed it seem very strange and totally at odds with my experience. 100% negative reviews just also seem odd. (So are 100% glowing ones tbf) Even lowly Cubase plugins can have redeeming features but P455 that was developed for over a year is just 100% no good?
I'm just finding this thread a bit disheartening and strange, like many threads of many plugins.
Anyway for me personally I'm demoing it and rather enjoying it so far. It's most likely not intended for the sort of music I do but I find it very pleasing. I am firstly using it a little bit 'wrong' according to MDN it is more designed to be mixed into from the beginning. Putting it on a finished mix results can vary a lot due to the spacial / sense of space / dimension P455 can add... So far I loved it on 2 out of 3 premasters I was trying to improve, using just P450 (if needed) and P455.
The 2 I liked it on were better mixes to begin with and P455 has just added an extra 5-10% or so. Some of this is down to just plain EQ but to my ears using VSX I feel there is an incredible sense of space / dimension which was not there before. It's playing with the bias, converters and 2 or 8 track options that give this. Now those tracks are super engaging and flow beautifully out the speakers I also tested on.
The 3rd track I did not love it as much, the mix isn't as good and perhaps needs a little more work. Still the EQ was nice to use and did improve things. It was nice actually not using tons of different plugins and squeezing as much as I could out of P455. The sense of space in the 3rd one is there but it is not anywhere as nice as the other 2. This could mean the mix needs improvement first or I tweak P455 more, or P455 isn't right for that track.
I'm looking forward to using it 'wrong' again in a mix or 2 and seeing whether those options in P455 are good at making single tracks sit better or contrast other things. Finally I might get around to testing it actually mixing into it if demo time permits.
I am not totally sure of the compressor, I think I like it but need to test it out more. Leaning towards it's better on than off but it's hard to hear it for me. I think it's because the attack / release on P455 is auto. Adjusting those parameters isn't the same as adjusting them directly.. so it might take a longer to get to grips with that compressor for me.
I think if you are already satisfied with your work or go for a wall of sound type of mix, then this plugin won't be for you..
For me it looks promising, it may help me get that illussive spacey feel I was after, so things are not so flat and can breathe.

