I don't know if it's worth stickying this but I've recently had an interesting experience regarding an Erisin double din head unit. I've had a number of Erisin units and they've all been very good, and I can't recommend them enough.
My friend recently asked me to help him buy a double din head unit as his OEM console failed. I suggested Erisin due to their features and seemingly good reliability. I've had 4 now, ...