I thought I was seeing things when I saw "buy it now $100" on a full set of LN screwdrivers. Even as I opened the package at the Post Office I was waiting for them to go "poof" and disappear, and I awake to see it was just a dream. ... But alas, it was real!
First thing to note- they are HUGE! Now I see why they are $25 each these things have handles relatively as big as a LN chisel handle. See pic below next to a 1" chisel and #1 plane. In pictures they look much smaller. The shafts are as wide as the blade, so the shafts are massive compared to your standard driver. Again, now I see why they cost so much.
I tried them on a #1 and a Cabinet Scraping Plane. They fit so well that if you don't put them in straight you might at first think they don't fit.
Next I tried the Veritas planes and they fit the cap iron perfectly. The handle required me to choose a size too small. Better than using a "regular" screwdriver, but not a perfect fit. The nicker driver perfectly fit the Veritas blade set screws.
On to the Stanley's and a bit of warning: The frog adjustment driver fit one screw on my #4, but was too big for the other screw. (Same screws but one is apparently machined a tiny bit wider in the slot, or more likely just worn a bit more.) It was too big for either screw on the #7. The handle screws, lever cap, and chip breaker all fit.
At over $200 new for the set, I would say just get the ones you need most, but certainly they are worth the money. I paid $100, so no complaints here! If paying full price I would have gotten the lever cap and chip breaker drivers and probably the saw nut driver.