We too are users of bitcoin, we know our own experience with self-custody tools, and the experience trying to onboard others.

Despite the huge improvements we're making to the self-custody experience, there are certain aspects which we simply can not abstract away without making tradeoffs.
(e.g. verifying key generation, not trusting)

Keen to hear what you think are the biggest barriers 

 I do not care. This product is going to Bomb.
It is too complicated. Period.
You refuse to accept that. Because you code and understand your own product. Your experience does not translate to others.