Belle Epoque is a pleasant friendly sort of place offering good value for money and a workman like menu.
There is a special menu for diners who arrive before 20:30 that offers excellent value for money but has the down side of being only available to those who pay cash.
It is more than just a Moules & Frits place so common in the city. The food we had there was very good though on our second visit when I did order Moules they were very average.
So in an expensive city this place is well worth a visit and it won't brake the bank.