I really like that you can create your own effects with ARKit, which is very easy to use for beginners who want an introduction into this technology! The only thing i dislike about it would be if there was more tutorials or guides out in general available online since some of them are outdated (i think).
If someone wants something they don't know how do build their first effect then go ahead because everything's possible using augmented reality!! You will learn so much from doing stuffs such as creating simple games where we put our phone camera up against objects/people etc., building fun things around real-world environments just by adding virtual elements over top - not even mentioning what kind of apps could potentially come along when people start experimenting further down the road :).