I fly to Brussels for Brussels usually once a month these days. I decided a holiday to Brugge last year flying in to Brussels. The train from Brussels to Brugge is very good, as is the taxi service from the train station to the hotels in the centre of Brugge.
The airport it seems could do with more attention, but very very seasonal in my opinion. Depending on it's future, I can see BMIR flights working from some Scotland airports to Brugge.