using artificial grass in balcony is suitable idea , you don’t need repeat maintenance to the grass also you will have a beautiful green view to the floor , this green view you will acquire it for long time
otherwise it will be more expensive than the nature grass , but the artificial grass i recommend it because you not need water for irrigation like the nature water so it will not harm your floor or the roof
if you have childs they can play on it , some artificial grass have a thick layer that may act as protection for your childs if they fall on it
take care about this point don’t put fireplace on the artificial grass , because artificial grass made of some plastics it may be danger so take care
