There are many cons. buying this pen-
Its design is not wprth buying at all.
Worst grip ever. Its grip is not good at all. Its diameter is much bigger than other pens which make it difficult to hold and write.
Decreses handwriting speed.
Ink not good at all.
Have to wait for the ink to dry up and have to be careful so that the words do not smudge and make it difficult to read.