It has no additional flavor other than adding sweetness. I would rather have no syrup than “fake” pancake syrup (e.g. Ms Butterworths).
I much prefer maple syrup. Of course it is expensive, so the Log Cabin table syrup is a good substitute that still has actual flavor and is affordable.
Edit: Also if you still want maple flavor for cheaper, a mix of half maple and half cane works good, like the stuff at Cracker Barrel. It doesn’t deserve the hate.
One time one of my chefs did a tasting for some of the staff with a range of syrups from colored sugar syrup up to rich dark maple. The secret only he and I (the one who bought everything) knew was that they were all just different blends of the two extremes.
Most people tended toward around 30% maple since it tasted like real maple and didn’t have the bitter taste of more pure maple.