Retired senior research scientist. Worked 21 years at Tektronix and 17 years at FEI (now Thermofisher). I have been designing, building, assembling circuits since I was 13 years old. This program looks like it would very useful for both newbies and old guys like myself. Simulators are great, but building the actual circuit almost always shows something unexpected. Since this program uses the standard 840 pin prototype board, it will be limited to fairly low speed circuits (2-4 MHz). These boards have a lot of natural capacitance between holes.