ABS plastic bumpers. Good/bad?

I’ve been seeing a lot of ABS bumpers and exterior parts around lately and was questioning the quality of using said material. Anyone have any problems with them?

I’m guessing the only real problem is when they do crack, it’s usually not a small fix. IDK. I’ve heard mixed reviews on the matter.

my spec v had abs front and rear bumpers stock. held up just as good as urethane. until they crack then your SOL. but its better than fiberglass, worse than urethane if you want to put it that way lol

Seems to be cheaper than fiberglass, though.