I bought this set specifically because it has all of the hard to find bits in one set. I didn't buy it specifically for anything, but it has already come in handy - I have a lighter that the screws came loose on and they're super tiny hex bits. I didn't have a small enough allen key, so there you go
It's a screwdriver, there was a loose screw. It screwed, it worked.
If you fix a lot of stuff, get it.. if you're just looking for a basic screwdriver set, look elsewhere - while this set has a decent selection of phillips and flat-heads, that isn't what this is for.