How is the fact that the play is from Tom's point of view effective?

It makes sense for Tom to narrate the play, because the
other main characters possess personality flaws that would make their ability to narrate
more problematic. Amanda lives in a dream world, stuck in the past, and Laura is
painfully shy and inexperienced with social interactions. Tom has a dreamy quality, and
fancies himself a poet. He is also very frustrated with his life at home and longs to
get away from it, in particular his difficult relationship with his mother. The fact
that Tom's main action in the play is to gain the motivation he needs to leave home
already means his character is slightly removed from the action, which also makes him a
suitable choice for the play's narrator.