[https://jlcpcb.com/capabilities/pcb-capabilities](https://jlcpcb.com/capabilities/pcb-capabilities) quotes :
1 & 2 Layer PCB: 0.3mm(hole size) / 0.5mm(diameter)
Multi-Layer PCB: 0.15mm(Via hole size) / 0.25mm(Via diameter)
The irritating thing on my current design is if I use 0.15mm(Via hole size) / 0.25mm(Via diameter) I don't actually need 4 layers :-)
Is this just cheaper equipment used for 2 layers, or another reason ?
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
