Yes, a big species, but worth having in the collection. Needs more light than most and heavy feeding during growth. Afterwards keep slightly moist, sunny and little or no fertilizer. They do not like heavy drying out. Although there are dwarfed forms out there (for a good reason), most need to be about 50cm tall to bloom. In the wild they can reach a meter or more.
A cross with D. antennatum would be interesting, dwarfing the size. Not seen it, yet.