Anti-Alias pros and cons

Anyone mind sharing some pros and cons about using antialias in your project? Im not so familiar with it but im building an iPad only app and im trying to give it the best look as possible. What exactly does antialias do? And is there a reason Corona removed the default boolean for it, will it effect game performance?

Thanks for sharing, here is a link where it says corona changed it from “on” to “off”

Link: http://developer.anscamobile.com/content/configuring-projects#Build_Configuration:_build.settings

Anti-aliasing

Corona uses software anti-aliasing for its vector objects. Previously, this anti-aliasing was on by default. It is now off by default, which will greatly improve performance of vector objects, and should make little visual difference on the latest high-dpi devices.

To turn it on again, you must create a config.lua file and add an antialias key:

[lua]application =
{
content =
{
antialias = true,
},
}
[import]uid: 30314 topic_id: 21845 reply_id: 321845[/import]