How far in to the series are you?
I'm about a third of the way into book three. The first book was the best but that's not to say there was a letdown afterwards. Book one, "The Thousand Names", had a lot more combat as part of the story; book two "The Shadow Throne", was more focused on the homefront and comparable in some ways to Game of Throne's first season, i.e. political intrigue, etc.... book three, "The Price of Valor", is so far a mixture of a grand military campaign and political struggle. All three books do a great job of character development, in particular the main characters: the intriguing new regimental commander, Colonel Janus; the tired Captain Markus, leading the dregs of the Army known as The Colonials in a dusty and hostile land and a private named Winter who has a very interesting secret. The supernatural aspect of the novels is.....rather unique and very well done...."The Penitent Damned", now there's an RPG class you won't see elsewhere, ha!!! Not typical swords and spells fare to be sure.
The novels aren't as grand in scope as GoT but you also have fewer characters to keep track of and there is never a time when the story isn't being driven forward. So in that it can be considered superior in execution at least. I'm really enjoying the books, Gus, and I think you will too.