GAON: “Agreed. However, as I see you are familiar with his works, you know why he is not so known?”
Possibly because of his machlokas with the Agudas Harabanim, which spilled over into the fiasco of chlitza al ydei shliach. However, considering his gadlus it should all be irrelevant. Then again most people today don’t know much about previous poskim.