Instant coffee is pretty good if you mix it with warm milk and some sugar. That being said, not great if it's on it's own.
You can do that stupid fad that everyones doing by making dalonga, but instead of the excess amount they make to plop it on top, I just whip a 1 : 1 tbsp ratio of everything (water, powder, and sugar) , get a electric hand whisk, make it into the cream/foam whatever, and mix it with warm milk, it creates a nice texture and its not disgustingly potent+sugary
I think the only time I use instant coffee as is with water/the powder than it being heavily diluted with milk is when i make a latte without the espresso (sadly).