I enjoyed the personification of hopelessness at sea which provided the central horror of this story. The bratty grad-student character grated on me a little, but I certainly enjoyed the sea captain and V O Bloodfrost's excellent portrayal of him. I must also admit bias as V O narrated my short story "King" - which I consider a truly amazing narration.
If I have a criticism, it is that the story didn't feel particularly nautical. There is no discussion of crossing parallels, of solar azimuth, sea state, squalls, currents, winds, compass (true and magnetic), deck logs, rudder angles etc. etc.
The references to *maps* was also particularly grating.
EDIT: forgot to mention that the reference to "auxiliary power" was grating as well. Aux power on a diesel ship would refer to all non-propulsion related power, not running on "back-up power" which is how it is portrayed.