The instrument required a professional set up on arrival. The heels of the the two neck are about a millimetre in difference, making, with minor adjustments, it possible to switch the bass to the bottom and guitar to the top. For my preference it makes the instrument far more comfortable.
I am surprised Danelectro didn’t consider making the necks interchangeable.
The bass has great tone and playability - 2 octaves. The guitar is comfortable to play but less exciting, but I play it through a bass amp.
Most important of all, it weighs less than 10lbs.