I haven't tried any other curling irons before, however...
I don't even know where to begin...but this thing is the worst...unless if you have short hair that is in the healthiest state possible on earth.
It heats up fast, no temperature control though. I find this lame.
Basically you curl a small section of your hair around the barrel then push a slider that presses your hair up for tighter curls. This last part will tug your hair and snap it and mess it and do every possible kind of injustice to it. And by the time it lets go of your hair its possible it's burned it elsewhere.
Also, if you have long perfect hair, you won't be able to curl it easily. You'll have to do each section in two steps
Why on earth would they invent such a lousy product?! Just go for a regular curling iron instead.