I work nearby so visit Bellamys fairly regularly. The maitre d and all the staff are so professional and welcoming that my spirits are raised before I even sit down. The smallish menu of French staples is of the very highest order, superb cooking of grown up comfort food served in a lovely room, with a bustly yet not too crowded atmosphere.
I have rather particular dietary requirements and they are happy to accommodate my annoying changes without any fuss. It is not cheap but very good value and a far better bet than twice the price trendier establishments nearby.