I work right above this cafe and went this morning for the first time! The guys working there are really nice and the orange juice with croissant I got were pretty tasty. Only downside I thought was the price... £4.40 for those two things and it was a takeaway. If you're working in the area or coming from imperial wharf it's a good place to stop by but obviously it will get expensive rather quickly.
I still want to try their sandwiches though, they've been recommended to me and apparently the value for money is much better...