Yep...not many know that shu and shiseido get their curlers from the same manufacturers. So if you can't get shu, then shiseido is just as good. Do consider your eye shape when buying it tho.
As a MA I've found that my fab shu curler is not perfect for every single eye shape. girls with either very deep set eyes, or large eyes which curve in a lot need the MAC curler. The MAC one has a deeper curve to it while the shu is a little more flat.