30 years of building. worst plane kit I ever had was a JHH Mirage. So bad, ( mostly horrible glass work and raw materials ) I sent it back and they made me eat a restock for it! Funny thing with the JHH model, I spoke with them directly prior to ordering. The owner praised at the quality of their molds and kit contents. Needless to say, they were horrible snotty lay ups. looked like a toddler played with resin and let it run, drip and puddle all over inside and let it cure that way and tried to include as many pea size air bubbles as possible. Truly the worst glass work Ive ever seen, not worth .02 of the hundreds I paid and then the portion lost on return shipping and restock. complete failure of quality.
Worst boat kit I ever had was a Dumas Bluefish, someone tossed the hot styrene parts around and ruined their shapes before they could cool and harden. I emailed Dumas 3x with pictures and they never responded. never again will I buy JHH Jets or Dumas Boats. .