In a move that makes the TV Barry far more similar to the comic book Barry, he will be far more lighthearted, stable in his relationship with Iris, and proficient in the use of his abilities — rather than constantly relying on some version of Harrison Wells to talk him through his powers.
Out of everything that has happened to Barry Allen ever since his initial debut in Season 2 of Arrow, this arguably feels like one of the biggest steps forward for his character.
Seriously, they should charge stress-relieving weekend getaways in the Speed Force.
Barry’s youth and inexperience have played pivotal roles in his characterization over the course of his tenure in the Arrow-verse (one of Oliver Queen’s first comments to him was “do your parents know you’re here”) but now The Flash is moving beyond that.