Wonderful, classic name! :D I think it’s both elegant and youthful.Though the pronunciation guide needs to be fixed, it’s not KHEE it’s HEE (actually a lot of names on here are said to have a KH sound instead of a H sound, and I don’t know why?)
The pronunciation listed here is absolutely wrong. No one in Japan pronounces it KHEE-NA-TA. For one thing, there is no KH sound in Japanese! For another, it's clearly written in Hiragana with a Hi (ひ) sound. I wonder if this is just an April Fool's joke that has stayed around for too long. :P
I actually really like this name for a boy, it might sound girly but if I had a son I wouldn't hesitate to name him like this, and I like the meaning it has, "sunny place" / "toward the sun", it sounds really cute.
Hinata, used as the kanji "日向" is currently 206th place in Japan among males and "向日葵" (though the kanji "向日葵" could be used as Himawari) is currently 495th place among females, in terms of kanji (source: http://5go.biz/sei/cgi/ninki1.htm, http://5go.biz/sei/cgi/ninki2.htm).