Bugibba would suit holidaymakers of all kinds from singles through couples, families & older people. It definitely has an outdoor culture & you can see the Mediterranean influence in the architecture and culture. The locals can often be seen walking along the promenade in the evenings or sitting around the square.
If its food you're looking for you can get anything from McDonalds through English food including a Sunday roast to traditional Maltese fare. The Maltese Rabbit is excellent as is the variety of fish & pizzas.
It is easy to get around the island from Bugibba as the busses are relatively frequent (depending on the route) and air conditioned.
If I have one criticism of Bugibba it would be that the place is a bit grubby. The pavements & roads are poorly maintained, uneven & in places verging on the dangerous.