I received these A. regale from a very good friend in the summer. They were stem cuttings the size of sausages. Now they have rooted in really well and are producing leaves that are about 10-12 inches in length and 6-8 inches at their widest point. I think that they are just fabulous and will be really cool when they get really big.
I bought a plant from the "Dr. Darian" group of seedlings from Tropiflora as well. I followed their advice of keeping it in damp sphagnum moss as a planting medium, and it did "okay" but was extremely slow. I made the decision to take it out of moss about a month ago and planted it into the ground, and it also has taken off, rooted in well and putting out new leaves now.
These are REALLY COOL plants, if you get a chance to obtain one and can give it the conditions it needs with a long range eye to the eventual huge size it may get to, BUY ONE.