These 4 books - The Dark Wing, The Dark Path, The Dark Ascent, and The Dark Crusade - exhibit many of the standard space opera devices. There are the winged and in many ways admirable aliens, the remorseless insectoid alien adversaries, the hidden powers attempting to manipulate human fates, and the sprawling and somewhat corrupt space empire. There is also more than a touch of mysticism with events mirroring myths of the winged alien species. Nor can it be said that Hunt has done anything particularly novel with these devices.
Nonetheless, Hunt is a more than competent practictioner and these books are a decent read. Hunt does quite well with reasonably tight plotting and characterization. His integration of the mythic elements is better than average. These books are better, for example, than David Weber's very popular books.