It wasn't fully success print, Infill overlap was wrong, so it has some lines of bubbles close to the shell. Im still working to improve quality of that types of prints. Also it seems it was too much of flow so in one of the edges(two sides) can be visible a spot with bubbles.
You must try by yourself what settings are the best.
It was printed as 20x20x20mm cube and that size is recommended
PRINT-ME Swift PET-G
Printed with Swift PET-G Natural
Flow 101% or more/or less (It's hard to tell, you should try by you own what settings are the best)
Printing Speed 24mm/s
No cooling fan and retractions
Infill overlap is also important. I don't have the right amount yet but it's more/less than 6%
Sanded up to 12000 micro mesh and polished