I popped in to get a drink yesterday. Apparently it's the first time they've opened at the weekend. It was fairly quiet but the food looked OK, if a little dried up under the warming lights of the counter.
I frequent the one off Fleet Street also. However, their red meat can be a bit tough, and they are certainly at the expensive end of the sandwich range, not cheap or cheap(ish). Birley's is far ahead of them in my opinion.