It's a nice name but way too trendy for my taste.
I think that other more classic names might fit better with your other 2 childrens names... (Both Hannah and Ethan are Biblical and older... Kaelyn...trendy... anything ending in "LYN" right now is pretty trendy)
Abigail
Delilah
Elisha
Mara
Sarah
Or something that sounds similar but less trendy...
Kailila - said Kah-LEE-lah
Kylilah- Ky-li-lah (similar to Delilah) you could use nn's if you like of Kylee or lilah