Prominent rabbanim in the USA and Eretz Yisroel have given their haskama to Shoshanas Bais Yaakov, including Rav Shmuel Kamenetsky shlit"a, Rav Elya Brudny shlit"a, and Rav Asher Weiss shlit"a.
”(Shoshanas Bais Yaakov) is absolutely necessary. I give it my haskama
Rav Shmuel Kamenetsky
”(Shoshanas Bais Yaakov) is not only a good idea. It's essential. I think it's extremely important. (It) has my haskama and my bracha.
Rav Asher Weiss