It can be, with one caveat: it is short, about 140 pages, and it presents the underground man in full for the first time, but Part One is a monologue without plot, which many people find harsh. Those who accept this enter the book that prepares the author's great novels.
In its favor: it is a book of two very distinct parts, and the second, about twice as long as the first, is narrative, with scenes, dialogues, and characters such as Liza, Zverkov, and Apollon. The narrator is the type who will return, divided, in the great novels that follow, and getting to know him here helps you recognize him later.
Against it: the narrator is unpleasant on purpose, attacks the reader, contradicts himself, and at the end of Part One says he does not believe what he wrote. There is no one to root for, and Part One asks for patience with arguments that fall apart by Chapter XI.
A tip: do not try to settle the argument of Part One, because he himself refutes it. Read it as the voice of a man, not as a thesis, and let Part Two show what that voice costs those who live with it. Those who prefer a novel with a plot can begin with another Dostoevsky and come back to this one later.