New 12" user and I am LOST!

[pichuete]

I suggest that you check the following things to see if it improves your prints.

1) reduce the infill perimeter overlap a bit.
2) make a thin wall calibration assuming you did your e-steps already fine tune your extrusion adjusting the extrution multiplier.
3) maker sure your filament is rolling smoothly. ( the provided stock spool holder is awful).

4) try to level you bed as good as you can even though you have abl. You can use G29 n3 T V4 to see your bed topography if you are using the enhanced version.

Also I noticed that your corners are curling up its seams that you are probably a extruding a bit to hot. In my case I have noticed that I need to lower the temp a bit for black abs. (235c)

You are in the right direction at this point little changes will get you there.

I have 2 month with My printer and I'm still playing with the settings. .... I'm still not satisfied with the quality.