I don't think so.
Last week my Mac eyelash curlers that I have been happily using for about 2 years broke on me. I declared the situation an emergency and purchased the much talked about Shu Uemura version to see what all the fuss was about.
I came home and did a quick comparison with the Mac curlers and errrrrr they look exactly the same! Some people have mentioned that the curve of the rubber band on the Shu curlers is different but to me it's identical to the Mac one. See photo's below, the Shu curlers are the one's on the right in every picture.
Do I have any complaints? No!
It preforms great, but so does the Mac one. It curls my eyelashes really nicely but did I need to spend £20? No, not really. If these break on me, then I will probably repurchase the Mac curlers as it's almost half the price.
Have you tried the Shu Uemura eyelash curlers?