The former Hammers boss returns to Upton Park in charge of the Black Cats this weekend and many anticipate a rough reception for the coach.
Others, however, feel Allardyce could be welcomed with appreciation for getting West Ham back into the Premier League.
And Big Sam told the Standard: "Whatever happens [with the fans on Saturday], it’s not one of those things that will be a complete surprise.
"It is what it is. People will have their opinion, whether I think it’s right or wrong. They have paid their money."
On the Sam Allardyce spectrum - a scale between those vehemently behind the Sunderland boss and those West Ham fans who wished he never took over at Upton Park - a lot of pundits and observers appear to have found a happy medium.
Indeed, there is acknowledgement Big Sam took the Hammers to where they needed to be and transformed them back into a Premier League club.
When more was needed, though, Allardyce couldn't deliver, while many have criticised his goading of the West Ham fans. How that affects his reception on Saturday, though, remains an interesting question.