I have been growing sansevieria for a few years now. I always divide them by the rhizomes to get new plants. This has been a slow process, as my plants don't put out rhizomes very quickly. Dividing the rhizomes is the only way to get plants that are sure to resemble the mother. It's also the best way to avoid the pitfalls of leaf cuttings: mostly rotting before rooting. However, as I get further in my journey, I decided it's time to try propagation by leaf cutting. The plain sansevieria will propagate true from leaf cutting, but many of the types with variegation will revert to a nonvariegated form. There are some resources that tell you which ones will revert and which ones won't.
I recent had a strange outbreak with some of my plants. Some died and some had horrifying-looking brown spots. I lost my original "moonshine," but luckily the local green house had a 3-gallon pot which I bought to replace it. This left me with an overabundance of "moonshine" as I repotted it into 5 small pots. This was the perfect time for me to try leaf propagation, having many adult leaves to choose from on this plant. Moonshine is one that does not propagate true from leaf cuttings. Chances are, the resulting plant will revert to regular S. trifasciata, which is a nice plant, and a specimen that I don't own. However, in some literature, namely "The Sansevieria Book" by Hermine Stover, mentions "Moonshine reversion" from leaf cutting which is a plant that looks like trifasciata, but has the growing habit of moonshine.
Anyway, I started this whole thing 2 months ago, and this weekend I finally saw roots, and then more roots.