I've never owned this model but I have experience with push knives.
I've used the ones I carried for normal everyday tasks like opening packages and cutting cardboard boxes. When I got my first push knife, a Valor Wallet Knife, and all-metal knife that looks like it it similar in size and shape to the Best Pal, I was 12 and still liked to make things out of cardboard, so I did a lot of cutting with whatever knives I had. That was my EDC for a while before I replaced it with my Urban Pal, which I later replaced with clip folders.
One advantage with push knives is that for self-defense you don't need to know how to use a knife. Someone who trains in an unarmed system that includes punching should be able to use one.
The main disadvantage with push knives is that many jurisdictions ban carrying them.