Much better than the EF I bought with my pen.

I bought my TWSBI Vac Mini with an EF nib, because I'm using it for my Bullet Journal and figured it would help with bleeding, space, etc. Thankfully these replacement nibs came out, because the EF is just too tiny and too scratchy.

This Fine nib is everything I needed, it's Fine line width and good flow make it perfect for my Bullet Journaling needs!