Have ordered multiple 3D printed parts from JLC, the shipping times are quite longer than with PCBs yeah. The quality is great for the price, they can even print pretty big pieces with resin (I had a flatbox case printed). Tried resin and MJF, honestly quite satisfied with both. Don't really see the reason to order their FDM.
Here are pics of some stuff I had done by them: TOTEM keyboard, resin Flatbox case and buttons (resin case, MJF buttons)