As some with RA, this dryer was a Godsend.  It hurts for me to blow dry my hair for 20 minutes straight, holding a heavy machine.  This dryer is lightweight, has 3 different heat levels and 3 speed settings so I can get the job done faster.  With the Florida heat and humidity, my hair frizzes the minute I walk out the door, this dryer although didnt completely eliminate that from happening, did lessen the damage of frizz.