I have one (in bright red) and and think it would be great for having in my pack for day hikes.

The firesteel would be good for several thousand strikes so doubtful it would wear out in your lifetime. Firesteels for me are emergency backup and not primary tool for fire-making (I'm fond of matches and Bic lighters for that).

The knife spine being designed to strike the firesteel means you don't need to carry (or keep track of) a separate firesteel striker.

The firesteel is quite secure in the knife handle, when placed in there properly.

I would not try cutting a tree down with the knife but it could certainly whittle sticks and fire tender.

Capable and super-light.

And inexpensive.