• General impressions to PCB softwares
    • Fritzing (http://fritzing.org/home/)
      • Pros
        • Free of charge
        • Flexible ( Able to use SVG for irregular shaped components/boards )
        • Has simple simulation for arduino y breadboard
      • Cons
        • Super slow
        • Only support 2 layers
        • Routing UI has high chance of mis-clicking
        • Component Editor not so user-friendly
    • Design Spark (http://www.rs-online.com/designspark/electronics/)
      • Pros
        • Free of charge
        • Fast
        • Has large ready to go component library
        • Can exceed 2 layers (4/6)
      • Cons
        • Not flexible ( Almost impossible to do custom shaped pads/cnc contour )
        • Grid system very badly designed
        • Routing UI has high chance of mis-connecting
        • Deleting routes doesn't pop net connection back
    • Yet to try: