This review goes for the series up through Full Share, the stories are well written, imaginative, and solid science-fiction, with interstellar cargo ships riding the solar winds out to where the ships can warp space. The focus on trading between colonies is a wrinkle I wouldn’t have thought of and it’s extremely well done.
I was disappointed by the final book, but all these leading there (Quarter Share, Half-Share, Full-Share, Double-Share, Captain’s Share) were excellent.