I still think PS C and F are better than regular C and F.
The hard products are nice: Westin Pillows and blankets. I like the spacebed that I can sleep in...I can only sleep on flatbed in an airline. C cabin is nice and quiet.
Regarding food and beverage, it is more presentation than substance.
I do agree most the PS planes seem to require a major refurbishing. May be there are so few of 757 PS planes that they cannot spare more than a couple of them for interior maintenance.
I have observed most of the people in PS C are upgraders from Y and PS F are upgraders from C and/or none revenue.