I honestly have a very bad experience with IPLs. I used one for several months once a week and, not only did mine break after 3 months, it also wasn't really noticeable that anything happened.
No, actually that was a lie. I did notice that, the space that was usually occupied with one hair now occasionally had a second (very thin) hair growing right next to it. It made me effectively have more body hair.
I'm sure that it would have worked better if I kept it up for half a year more or so, but there where 2 more factors that made my stop using it:
- the IPL impulses hurt my eyes even it had good skin contact
- doing one session takes fucking for ever
So in conclusion: save your money and save your time (imo)
Edit to clarify: I mainly used it on my legs, I notices absolutely nothing on my face either though