They are very easy to grow. They don't grow too big, they don't need to be fertilised to produce seed. They grow easily from seed. They form big clumps quickly if that's your thing. A couple of people have produced crosses with them.
I've found a few old threads for you to have a look at, there are more, but I can't seem to find them, they must be in other threads
Musa velutina
Musa Velutina / Dasycarpa
M. balbisiana x M. dasycarpa