Omomo is great but definitely not worth the line (pretty much nothing is)
We did go to that center for breakfast and was like the 3rd person in when they opened. Line starts like at 10:45 (they open at 11) and get pretty long by 11:30.
I feel like they are highly inefficient...whether intentionally or not. They have one cashier and the actual preparation area is too small. Like half of the store is just standing space. They could implement an mobile app/online order system but instead, everyone is stuck in line.