The Internet Archive has this online:
[not any more, they don't. the film has been removed]
Bright Lights Film Journal says it's "generally considered his first masterpiece". Images Journal says, "it showcases his ability to orchestrate a complex story without losing the viewer." DVDTalk suggests it
is one of those straightforward, unpretentious entertainments that serves as an excellent and accessible introduction to one of the world's greatest filmmakers.
2/20/2010: Noir of the Week calls it "cinematic art".