This is possibly the fastest growing fish that I have ever seen. Purchased as a juvenile of maybe 1.5", it has doubled in size in less than 1 month.
Fish is a VERY healthy eater and takes everything that I feed. It is not intimidated by fish many times larger and shows no aggression toward any other fish.
I would say that this is a very easy fish to keep. However, this tang grows very large and is only suitable for larger systems. (300 gal or more?)

Naso Vlamingi (Juv)
__________________
400 gal reef. Established April, 2007. 3 Sequence Dart, RM12-4 skimmer, 2 x OM4Ways, Yellow Tang, Maroon Clown (pair), Blonde Naso Tang, Vlamingi Tang, Foxface Rabbit, Unicorn Tang, 2 Pakistani Butterflies and a few coral gobies
My Tank:
http://www.canreef.com/vbulletin/showthread.php?t=28436