Having just finished the latest DL book, I have to say I didn't care much for it. 
It felt a lot like Pollatta's recent stuff. Lots of action, but not well choreographed. Therefore, the action, as well as the storyline, didn't engage me.
I liked the Snake Eye character. Him knowing all about the companions and being a pretty colorful character, made his part pretty interesting. But too many side characters betwixt the two groups. I didn't care for any of them, and I got confused as to who was what. After about a 100 pages, I didn't care anymore. 
Victor Milan has proven over and over for a few decades now how he can pen a solid action/adventure. But these last two DL's have been lacking in great action sequences and fresh concepts. 
Hey, every writer I suppose can have his stinker. I'd rather have 2 or 4 GREAT DL's a year, than what I've read in the last year. In the last 6 books, there have only been 2 good ones. Chuck's Hell Road Warrior's raised the bar so friggin' high!