Shapeway quality depends a lot on the material chosen.
"Strongl White flexible" is very strong (aha) but also very rough, needs heavy sanding that sometimes obscures the details - NOT recommended for ships, OK for bigger models.
Example:
"White Detail" is smoother and usually gives abtter result, good enough for starships. - OK
Example:
"Frosted Ultradetail" is the best, some production lines are still visible - Recommended
Example: