Full Access app - Advantages / Cons

[Anel Hodzic]

Hey,

I've made commercial app basically lister app which will be used as a helper tool for etsy, basically you will be able to bulk update, change prices etc etc etc...

I'm currently using API key which has authorization process inside our app. User click on Authorize, select his account verify and he was able to use application.

My question is : 

Do i need full access to distribute this app, what am I getting by using full access ?