The show is a more than promising local debut.
Other less personal readings are equally possible, but there's no question this is a promising debut.
Still, at least those three new hourlong shows have made promising debuts.
The book was well received by the Danish newspapers calling it "a promising debut with an appeal for children who like action"
At the same time, exuberance has virtues of its own, and they are evident in this promising debut.
It is a promising debut; you feel that in the right hands he could do something solid.
They make what could have been a stunning debut merely promising.
This history of his wanderings was considered a promising debut.
Because of this, the album turns out to be both mixed effort and a promising debut.
The promising debut revealed that he can be both frivolous and serious.