Will different kinds of sugar or coffee affect coffee syrup flavor? This coffee syrup is basically a 2 to 1 ratio of sugar to coffee, and you boil it to a thick syrup. A person who tasted the final dish said it tasted like espresso!

What kind of effects would it get from different kinds of sugar? Would brown sugar give it a molasses taste, for example?

Would different coffees have any effect on the coffee syrup?
Coffee syrup, like anything else cooked, will taste of the ingredients used. If you use brown sugar it will syrupy and have a molasses flavor, if you use floral honey it will taste of it. If you use a richer coffee bean it will have a richer coffee taste.