The evidence is there in draws against the likes of Norwich, West Brom and Palace who we now meet again less than a month after we shared the spoils at the Lane.
It's not quite what the Swedish full-back was used in his time at Heerenveen in Holland, as he explained: "It has surprised me even though I knew at the start that every game would be tough.
"In the Dutch League, for example, you know when you play one of the bottom teams at home that if you score in the first half then you will win three, four or five-nil.
"Here you have to fight for every inch, every point. That has developed me as a player because you have to be focused every minute and if you are not, you will be punished."
Palace's 13-goal hitman Andy Johnson punished us when we met at the Lane and Erik knows he has to help keep him quiet.
He added: "Palace are a good team especially Johnson who is fast, sharp in front of goal and a good player, I like him."
He was expecting it to a degree, but Erik Edman admits he's been surprised by the strength in depth of the Barclays Premiership.