Ernest Faber, the coach who gave him his PSV Eindhoven debut aged 17, described him as a "great talent" and talked up his ability to absorb complex tactical information quickly.
Roger Schmidt, Faber's successor, labelled him "special" and marvelled at his technique and one-on-one ability. "He is also able to read situations and get into the right areas, with his timing," he said.
Ruud van Nistelrooy, Madueke's third and final manager at PSV, held him in similarly high regard, lamenting the loss of a "very important player" when he completed his £29m move to Chelsea.
But the most glowing assessment of all comes from Saul Isaksson-Hurst, a technical coach with a long list of clients who has worked with Madueke on an individual basis for the last two years.
"He is top," he tells
Sky Sports. "For me, he is one of the best young forward players in Europe, easily. A lot of focus has been on Cody Gakpo at PSV, because of the World Cup, but Noni is up there.
"He is one of the best, if not
the best, because he is so dynamic, so strong in one-v-ones, so technically gifted, so athletic.
"Really, he's got the full package.
"He's got such a clear vision of what he wants to do and he is willing to put the work in."
"Noni is an attacking wide player who likes to play on the right as an inverted winger, so one of his 'super skills' is cutting in on his left side, like Arjen Robben, and shooting from the edge of the box."
"I think he'll go in there and make an immediate impact," Isaksson-Hurst says.