It doesn't scale, in that you ideally want to test your app's UI/UX with first time users who haven't gotten used to your app's quirks yet. But it allows to cat

It doesn't scale, in that you ideally want to test your app's UI/UX with first time users who haven't gotten used to your app's quirks yet. But it allows to catch a lot of stuff early on at the cost of buying them a coffee or a beer (if that).