Is IOS the problem or the focus group used to design this app

It seems to lack everything I want from an ipad app.

Usb loading instead of wireless both while adding songs to playlists and when attached to cdj2000s

Non-redundant music space. Every song imported from iTunes playlist is copied and space is used on my ipad .

Stable enough to transfer all my playlists without crashing

To name a few irritating issues.

Infinitely Bored about rekordbox