The West Ham playmaker is now the subject of praise from another Sky Sports pundit.
The 28-year-old Frenchman has been 'top drawer' since he moved to Upton Park from Marseille and Merson has talked him up following his nomination for the player of the month award.
Indeed, the former Arsenal midfielder believes Payet has been outstanding and has discussed what other coaches who didn't make a bid for him must be feeling.
Merson told Sky Sports: "Payet has been outstanding. The lad is top drawer and there will be a lot of managers around the country wondering how they missed him.
"I wouldn't say he's carried West Ham because they're a good team with good players but he's just brought that added touch of class and guile. He has been absolutely outstanding."
Merson is the second Sky Sports pundit - after Thierry Henry - in two days to heap praise on Payet and he is certainly right to suggest other managers will regret not taking a risk on the 28-year-old.
So far, it hasn't proved a risk at all. The Frenchman signed for a portion of the fee paid for players in a similar position and has made the biggest instant impact of any Premier League newbie in recent memory.
The key for West Ham, of course, will be keeping Payet ticking - and, most of all, keeping him fit.