The breadboard is essential for testing circuits. The only issue may be that the rubber feet use a self adhesive to attach to the breadboard which may not hold well long term. I also noted that when you use the dual power supply kit RB-Spa-105 (5v, 3.3V) with the breadboard the power supply board must sit on an angle in order to plug into the breadboard power bus lines. This is because the breadboard pins dont exactly align with breadboard bus pins. Not a big deal just an observation.