In a letter to R' Avraham Genichovsky's sefer Bar Almugim, R' Chaim Kanievsky wrote: "My friend, the gaon R' Avraham Genichovsky, left many writings encompassing all parts of Torah. He was an extraordinarily great man, like a flowing spring of Torah, chesed, and outstanding character traits. It is a great mitzvah to publish his writings." R' Yitzchak Shaul Kanievsky, R' Chaim's son, later remarked that he could not recall his father ever expressing such praise about anyone else. In fact, R' Chaim Kanievsky's father-in-law, R' Yosef Shalom Elyashiv, would stand up when R' Genichovsky entered the room, a sign of the tremendous respect he had for him.
In his sefer Bar Almugim, R' Genichovsky cites a novel insight from R' Dov Landau. He raises the following question: What is a fruit over which the correct bracha is Borei Pri Ha'eitz, yet if one mistakenly recites Borei Pri Ha'adamah, he is not yotzei, even b'dieved?
The answer is the fruit of a tree grown in a flowerpot without drainage holes. Since the soil in the pot is not halachically connected to the ground, the bracha of Borei Pri Ha'adamah is not appropriate, even b'dieved.