Question

would you consider coal a good fuel

Answer 1

Coal is not a good fuel. Although it produces a lot of energy , it's negative side can't be ignored. It release excess carbon dioxide, which in turn causes air pollution, and respiratory diseases and also global warming. Thus I do not consider coal as a good fuel

Answer 2

A good fuel is :-
1. which has a high calorific value
2.easily available
3. easy to handle
4. less polluting
5. sold be cheap

Coal is fuel which is being used from decades but it cannot be considered as a good fuel as it contains mixture of sulphur which gets oxidised and gets concerted to it's sulphides which this pollutes the air.
so coal cannot be considered as a good fuel.