My only experience was my grandparents once getting me a bucket of Megablocks when I was a kid - probably late 90s/early 2000s. Things have probably improved since then, but these things were awful. The plastic was dull, colors were pale, and they bent easily - getting those white crease marks. It was also my first lesson in tolerances, because the tolerances were also awful on them. They were inconsistent, and many were too loose to tightly connect to each other or real Lego. My grandma was also very disappointed and went back to buying the real stuff for future birthday presents!
My only experience was my grandparents once getting me a bucket of Megablocks when I was a kid - probably late 90s/early 2000s. Things have probably improved since then, but these things were awful. The plastic was dull, colors were pale, and they bent easily - getting those white crease marks. It was also my first lesson in tolerances, because the tolerances were also awful on them. They were inconsistent, and many were too loose to tightly connect to each other or real Lego. My grandma was also very disappointed and went back to buying the real stuff for future birthday presents!