A few days ago I received the LibreServo boards I had ordered from JLCPCB. As I told you in the article of changes in LibreServo v2.1, the new version of LibreServo added two extra layers to reach the 6 layers and thus have the offer of JLCPCB and after receiving them and see them ... I only have words of absolute amazement.
The result is magnificent, not only the gold finish looks great in it 😎, the silkscreen itself is much better than when you order plates of four layers or less and the tracks filled with epoxy and covered in copper give an extraordinary result, not only at electrical/routing level and for soldering is a huge improvement, but also allows silkscreen printing on top of vias without any problem, which in LibreServo with the philosophy that has to point all the components to facilitate then when soldering, it comes great.
The only problem I have seen is that many vias have not been filled with epoxy and covered in copper. I have looked at the JLCPCB website and you have to indicate exprocess that you want to fill all the vias, which I did not do and that's why many arrived well, and many others as normal vias.