Having recently arrived from Serie A champions Juventus, the 27-year-old has been quick to impress the Upton Park faithful.
Despite winning back-to-back league titles as well as featuring regularly for the Old Lady in Europe, he suggests he had no qualms in dropping down a level to represent the Hammers.
He explains the future plans for the club - including next summer's move to the Olympic Stadium - and Slaven Bilic's charismatic nature proved key when making his final decision.
“I talked with the boss and he explained to me what he wants to do with this club,” he told the London Evening Standard.
“The manager sold me the story and I feel it is better for my career to come to West Ham now.”
“I play now and I don’t think about last year. I have to think about this year.”
The Italian centre back will be hoping to build on his debut performance against Arsenal last weekend, when Leicester City visit Upton Park for the club's first home game of the season this weekend.
After weighing in with a domineering performance at the Emirates against Arsene Wenger's title contenders there is a real sense of intrigue surrounding Italian international's pedigree and his ability to establish himself as a Premier League star.