"Scubadiving... in space."
The overall story and naration was quite good, I like the retrieval artist novels so took a chance. The characters are nice and if you're looking for some adventure you'll find it.
What makes me stop at three out of five is the weird choice of driving part of the plot with very advanced interstellar and then limiting 'dives' by running out of air in 60 minutes. Even today's EVAs on ISS and Shuttle missions last for 7 or 8 hours. All in all, it feels like the book was written while learning to scuba dive.
Enjoyable nonetheless, recommended.