Waited 80 minutes in line with friends. Bought both the madelines and the cheesecake.
The cheesecake was quite bland and was only redeemed by its fluffy texture. The madeline was a good combination of sweet and creamy but wasn't all that different from similar pastries that can be found at decent Chinese bakeries.
Overall I would say that the cakes are overrated and not worth the wait. They aren't terrible though and are relatively reasonably priced, so if you're really curious and have time to kill, eh.