What are the advantages of Formalism? What are its disadvantages?

Formalism has a lot of advantages, When we would like to analyse a literary work, for whatever purpose,  we have many differents approaches. We can go about the historical context, cultural context, even we can get about abstractism. And so, we can approach the literal work from the point of view of the syntaxis, the structuralism and the former things of the work.

Formalism advantages have to do with the easy of work when analysing the work. You don’t have to really think or research about any other thing, not about the author's life, cultural or historical context, you just have to use a kind of “template”. You have to understand about how syntax, vocabulary and other things affect the novel, or play or whatever you want to analyze.

But also we cannot rest with just doing a formal analysis and thinking that that will do enough. An formal analysis will just do it without taking into account the historical and cultural context that the author lived.

It just do the form, not the message that the author tried to say.