I have two varieties, my wife wanted them, the tank is in the family room so I had to compromise. I have the more typical ones, but I also have a variety that has narrower leaves that mostly grow vertically they are doing the best, sorry don't remember the variety. In the end I really like them they have established themselves in many areas of the tank and I like the plantlets developing from the spores on the backs of the leaves.
When planting them I normally just push the rhizomes onto the surface of the substrate or simply put something heavy on them until the rhizomes hold the plant in place.