Hi, I've done many batches in which I added maple syrup, both at the beginning and for bottle carbonation. In my experience, I couldn't detect any maple flavor in the finished product. However I feel better knowing that I've used a local, organic product that was made by my family, rather than ordinary refined sugar.
By the way, I also tried to make a few batches of maple wine using only partially-boiled sap, and didn't really enjoy the result, even after years of aging. This also didn't really taste like maple at all.
One idea would be to make a cider that's very dry, carbonate if you want to, and then add a bit of maple syrup in your glass when you drink it. I sometimes do this myself. Happy brewing!