Hobby DJ play 3 gigs every week, open format dj style.
Work with Serato dj pro for many years (started with Serato itch and Vestax vci 300).
Tempted to find a small pro controller who work with iPad, i ended up with a Reloop mixtour pro and djayPRO.
It all work fine, just changing of software is sometimes a bit of a headache as many things work a bit different of course.