Maule is a badly constructed plane with a cheap airframe and an oversized engine.
When you are flying a Maule you must understand you act as a 'test' pilot.
The Maule is a very well built aircraft, and a very proven one, too. Nothing experimental about it. They're strong, they work well in rough conditions, are excellent short field machines.
The airframe is seldom disparaged by those who know what they're talking about, and well respected by those who who do.