I've been using these replacement tips for my Apple Pencil for a few weeks now, and they've completely transformed my iPad experience. The set comes with six different tips - one POM material tip that mimics the original, and five metal ones that offer varying levels of precision.
What surprised me most was how the metal tips feel when writing. There's this satisfying slight resistance that makes it feel more like writing on paper than glass. I use my iPad primarily for note-taking during meetings, and with these tips, my handwriting has actually improved because I can control the strokes better.
The installation couldn't be simpler - just unscrew the old tip and screw on a new one. I keep all the extras in the included case (which is surprisingly sturdy) in my bag, so I can switch them out depending on whether I'm sketching or writing.
My favorite is definitely the finest metal tip - it's like using a super precise technical pen. I was initially worried about screen scratches, but after weeks of use on both bare glass and with a paper-like screen protector, there's not a single mark.
The only minor drawback is that the POM tip feels slightly rougher than Apple's original, but honestly, once you try the metal options you probably won't go back to plastic anyway. For anyone who uses their Apple Pencil seriously, this $15 upgrade makes a world of difference.