At first I read it as Artley and thought it was really cute. Arley sounds girly to me. It may make it more manly being spelled Arlee. Either way it's your baby, your choice.
Don't listen to other people, they aren't the ones who carry him for nine months and birth him! I had some amazing and great names I loved and no one supported. I don't think it's girly - Harley is a unisex name and Arley should be too. I think it's adorable and unique!(: besides, no one can really imagine a name for a kid but its your baby who gives that name its spice, and people will end up calling him it with ease as if no other name was ever meant for him. (:
I think its fine. There are plenty of girl/boy names. Why can't that be one. Who cares.
I know a boy named Harley. Arley is close to that, so i don't think it's girly.
I know a girl with this name
I sounds a bit girly bit I think it's due to the fact that it ends in Y. That being said just like they said mentioned if you like it keep it. If you are really that worried about it you could change to Arlen and call him Arley as a nickname.
It's girly but no one likes my sons name I'm picking but I don't care
I think its a lovely name. Who cares what people say, its not their baby, its yours :-)
Personally, I think it sounds girly. But if that's the name you love, then stick with it. Its your kid, name him what you want.