The president is using this only because it is "easy to write." However, as individuals, it is difficult to dry and it is very hard to use because it will soon become soiled if it is a little touchable. Therefore, average satisfaction is "normal".
Compared with other companies' inks are heavily thirsty, so it takes time to write the address. The pen tip is not smooth, so the font does not look beautiful. Because the price is good, I think that it will be good if it improves other.