The second drawback, they start very easy to lubricate. While not write in normal, but if you highlights in between something accumulates the ink on the sides of the pen tip. If one writes further without wiping short, thick blobs remain on paper hanging.
Last nor underlining / Drawing Lines / drawing tables. Here the Frixion is also not optimal. The strokes are often a bit messy. The line looks quickly like a double line, because in the middle of where the ball lies not paint stuck, but is pushed to the sides. While at the right pressure and the right speed works also, but it's a bit annoying.
To take notes, where there is not too much a matter of nice typeface, outweighs the advantage of Wegradierens.
Who is a very concentrated clerk who does not correct so often, should rather take up a good pen.
Ps:
The writing will disappear the way through heat. So do not leave it in direct sunlight. For example, in the car.
When the times but happened: short put in the freezer. Although Scripture does not come back with full contrast, but you can read it at least back!