The sandwiches here are yummy - the Boxing Day is my fave (basically Thanksgiving dinner in a sammie complete w/stuffing & cranberry sauce). The best thing I love at BSB is the sausage rolls - perfectly flaky, generous size & generous portion of deliciously seasoned sausage meat. Plus, they're fresh baked throughout the day and kept warm (best way to eat it).
Pastry-wise, I sometimes grab croissants (butter & almond are my faves) and butter tarts. I wouldn't bother w/the macarons, they do other items much better (like the carrot cake).