Played this in a one-shot at level 10 and it was a lot of fun. Never played a Dragonborn before and I highly recommend using this if your considering a Dragonborn Barbarian. There is alot of extra utility with this subclass too. Being able to climb upside down with no check AND drop with no fall damage because you can fly was really rewarding.
The layout fit my phone screen nicely, had to do some swapping between the pdf & dnd beyond while playing but it was worth it
[5 of 5 Stars!]