Brazilian full-back Maxwell is one of Ibrahimovic's closest friends in football, having played alongside him at Ajax, Inter Milan and Barcelona.
And Maxwell told L'Equipe TV: "With his height, his physical presence and his technical skills, there is nobody like him.
Ibrahimovic has polarised opinion throughout his career, with question marks over his attitude as he has failed to add consistency to his considerable talent.
But Maxwell said: "Sometimes you have an impression of someone, but when you get to know the person for real he is completely different.
"He is very loyal to his friends and his family and he is a very good guy."
Heart of Midlothian will begin next season with a 15-point penalty after major creditor Ukio Bankas succeeded in installing its preferred administrator in charge of the club.