Choppers are absolutely not BIFL. I have one of these because it's cheap enough to try out, I kind of regret the purchase.

The chopper is ok, but the ONLY benefit is a faster prep time, & the ability to cut waffle fries since I have no professional chef training. My partner cut himself accidentally setting up the blades so take from that what you will. When it gets dull it will go in the trash.

I think buying good quality knives and spending the time to learn and practice knife skills is the only BIFL solution.