They've started using outside venues for hospitality ie 3sixty & Gaucho. Do they then get 'normal' seats or are they put into the platinum or something similar? If its the former then it is affecting the normal fan.
First time I went was FA cup the year after it opened and I was blown away by the stadium itself, concourse being huge and facilities like no other ground I'd ever been to.
From experience and current PL (View Only):
King Power, City Ground, Molineux, Etihad, Old Trafford, Villa Park, Craven Cottage, Anfield, St. Mary's - Sound
Goodison, London Stadium, Emirates, Selhurst Park - Shite