The Yesod HoAvodah says that he will also merit health, as it states (Devarim 32:39) ארפא ואני מחצתי, that with the מחיצות, the walls of the succah, there will be refuah.
The Kaf HaChaim (siman 621:6) teaches, "Whoever is cautious with the mitzvah of succah, to keep it properly, is guaranteed that there won't be disputes in his home throughout the year." Sitting in the succah is a segulah for attaining shalom bayis.
Segulas Yisrael (ח"י אות 'מ מערכת) writes that learning masechta Succah, any day of the year, is mesugal to be saved from machlokes. The hint is (Tehillim 31:21) לשונות מריב בסוכה תצפנם, "Protect them in a succah from the disputes of tongues." Reb Naftoli of Ropshitz zt'l would study masechta Succah throughout the year, and he said that it is mesugal for shalom bayis.
Learning masechta Succah is also mesugal for bringing Moshiach, as we say in the tefillah, ועל ישראל עמו כל ועל עלינו שלום סוכת 'ה יפרוש ירושלים, that Hashem should bring peace to us, to all Yidden, and to Yerushalayim.
The mitzvah of succah is mesugal for parnassah. Tiferes Shlomo says that this is hinted at in the Mishnah (Succah 28.) שהיה מי הבית בתוך ושלחנו בסוכה ורובו ראשו, "A person who his head and most of his body are in the succah and his table is in the home." Alluded in these words is that from the mitzvah of succah, he brings parnassah to his table in his home. Another indication is the Gemara (Succah 29.) לסוכה חוץ מיכלא מנא, that also when he is לסוכה חוץ, outside the succah, he will receive מיכלא, food, and parnassah because he performed the mitzvah of succah.
Sfas Emes (5637) says, "The mitzvah of succah brings brachah and a light of kedushah to the person's home [throughout the year]."
The Sfas Emes (5658) explains the brachah of Shemoneh Esrei, ישועה ומצמיח ומחיה ממית מלך, as follows: ומחיה ממית מלך, "a King Who gives life and death," this occurs on Rosh Hashanah and Yom Kippur. ישועה ומצמיח, "He sprouts salvations," this happens on Succos because on Succos, salvations come, and the harsh gezeiros are ripped up. "The purpose of the judgment of Rosh Hashanah was to cause these salvations to sprout."
Hoshana Rabbah
The translation of Hoshana Rabbah is "a great salvation" because many salvations come to us from this special day.
