Feldheim Publishers has published this edition, too. In fact, this is the edition of Derech Hashem that has replaced R’ Katz’s spoken of before in Feldheim’s library. They have also published quite a number of R’ Efrati’s other Ramchal works.
R’ Efrati also presents us with many fine explanatory notes, but his greatest contribution to Ramchal studies, to my mind, is his reference to other Ramchal sources where the same themes are discussed. The latter makes this work an essential addition to one’s Ramchal library.
(c) 2013 Rabbi Yaakov Feldman
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