This was my 16-year-old son's first kit, though he has some electronic soldering experience. He watched a few build videos online to avoid any obvious mistakes. Using the extremely detailed color instructions, and taking his time, he successfully completed the build over about 6 hours without a single mistake!! He could now build a second one within a few hours.
The best thing is, he learned so much during the process from how optocouplers work to calibration. There is no other kit that could teach a beginner so much about pedals! It was truly an educational experience for him and got him excited to start another build.
I can't say enough about the quality of the case, PCB, electronic components, and even the stickers! What a top-class product! And the LPF/HPF dipswitches, and internal trip pots (including gain!) make this pedal the most versatile I've ever seen (more so if you know Arduino!). The only small "time-saver" change I could think of was wondering if replacing JP1-4 pads with jumpers would make accurate recalibration easier as opposed to de-soldering.
And the sound! What an incredible range of tonal options. I can't say enough about this pedal. I thank the team at Zeppelin Design Labs for a great father-son experience that will endure through our music.
Next up, the Altura!