This name sounds much, much more mature and sophisticated than Riley, even though I do think Riley is a pretty nice name, as long as it's used on guys, not girls. This name is less likely to make me think of Bill O'Reilly as well, so I'd say this name is way better. But well, I think this name is guaranteed to become overused and shortened to the even more overused Riley.
I had a crush on a guy named Rylan for the longest time! But once I realized he was a friend, I thought to myself "I probably only liked him because of his name. It's an awsome name!" It is VERY masculine. I hope it does not become popular because I like it unique. I hope to name my little boy (if I have one) Rylan.
I feel like this could be a boy name (variant of Ryan) or a girl name (reminds me of Rylee). It sounds nice for either, and I normally dislike names that are suitable for both genders. Although honestly I have never met anyone named Rylan.