It looks like a stereotypical name for a bratty child. I can't even imagine a teenager with this name. Also, I know it is pronounced kay-lee but I have a weird urge to pronounce it say-lee..
Wow at all the people complaining about the spelling. You cannot misspell a name. You simply can't. A name is a name. I personally love the name Caelie no matter how you spell it.
I think this is a pretty spelling. My favorite is still Kaley, though. What I like about both Kaley and Caelie is that they look independent of Kaylee, which (while it may sound nice) I think looks like a silly compound name.
Also looks like a Welsh spelling of Kayleigh.