Agree with others:

1. This feedback should be going directly to Delta
2. The current PS offering is very much hard-product only. It is a possibly wider seat with more pitch and more recline. The soft product, in my experience, is sorely lacking - particularly for the price premium Delta charges for PS. (I basically look at it as a means to be UG eligible for D1, and a slightly better seat for a long haul in case of no UG.)
3. I think Delta might recognize #2, given their announced soft-product improvements coming later this year.