It's a piece of polemic designed to attract people to the cause of Communism; and as Marx was a good writer it certainly attracted a lot of attention; even after a century - one cannot say the same for most if not all political manifestos published now by mainstream or even obscure parties.
I'd say the Bible of Marxism is Das Kapital; rather than the manifesto, which merely serves as an appetiser.
But given that it's been a century that Marxism was outed as a political programme; one needs to also consider all the theoretical approaches, particularly in light of its history since then - so more of an 'Old Testament' rather than the 'new'.
It's also worth seeing Marxs ideas on the light of the Classical tradition of economics; a tradition to which he owes certain ideas; and with the ending of the Cold War, and the hollowing out of Communism in China they might be begun to seen in their true light, or at least in a more scholarly objective appraisal rather than overlaid with damaging distortion of ideological and political commitments.
So, I'd say no; it's not enough.