leading into the Lost Fleet series.
I did enjoy this first book, in a scarf-up-junk-food, wiping-orange-powder-off my fingers sort of way. The premise is a nifty twist on the "Sleeper Wakes"/"Buck Rogers" idea of a hero from the past coming to whip the flaccid future folk into shape. It's a stretch, and a bit of a cliche, but I accepted it without qualm. Absorbing the situation, the characters, the forces in contention kept me engrossed as the story crackled along.

The basic plot is full of jumps and twists and derring-do. Conceiving challenges for his hero and then creating a clever solution is Campbell's strong suit. So, kudos there.
His weaknesses, though, become repetitive and tiresome. For openers, there are no descriptions. I literally have no idea what any of the characters look like, nor is any sense of environment provided. There's not even such ultra-bland indicators as "She was a beautiful woman" or "He was handsome." Nothing. Stick figures engaged in a minimalist "Etch-a-Sketch" world. (When one character was described as wearing a star sapphire ring, such a spark of focussed colour nearly blew me out of my chair)
The writing is also basic in structure and uninspired with vocabulary. He is stuck in a "telling instead of showing" rut. Telling instead of showing gets the information across, but it makes for humdrum, hard to keep eyes open, reading.
The puzzle-cracking and problem-beating kept me going into book after book. I was just invested enough in the hero and the predicament to want to see it resolved. It's also a rude marketing decision to have each book stop almost literally in mid-sentence. Not so bad now, coming in well after the entire series is published, where I can just pick the next one and keep going. If I had read this back in 2006, forget it. I wouldn't have bothered with ever looking for the next one to appear.
I did stop at the end of book #6. Officially there are eight in the series, but all the plot points I had been following actually wrapped up at the end of #6. More problems were looming for Our Hero, but I jumped off the train at this station. Done and glad to be done.
I've ramped up my criticism a bit high here. I think because I'm frustrated with the waste of potential. Mr. Campbell has the skills to craft a decent book, but I suspect (based on the tonne of books published) he has chosen the regrettable path of speed over quality. He could aspire to being a noteworthy chef, but instead has chosen to be a fast-food burger flipper.
I've read worse books/series, but I still am unable to recommend this effort.