I’ve had mine done twice. They look daft immediately because of the shiny serum, but great the next day. I have really, really thick eyebrows - I am white but always get told I have Asian brows - and after about a fortnight they started to look completely mad. That was apparently the “perm” growing out, and they needed a LOT of brow gel to have them look normal!
I really do like the effect though, and on people with finer hair they don’t tend to get the bushy pube thing I did. The girl I go to trained at Brow Jam.