I use mine all the time, even on my armpits and I love it. You will get used to the discomfort after awhile.
Make sure you pull the skin taut, if at all loose it will hurt.
It never gets pain free but after the hair gets finer with use it comes out easier and so is less painful.
I would never use anything else. Cleaner than waxing. Last longer too!
I never use ice to numb the area either.
I dont know if there are any tricks to make it less painfull, everyone has a different pain threshhold.
It is worth it if you can tolerate it
Isn't it awful that beauty is so painful all the time