It works okay when thrown on a hyzer into a headwind, but there's about a million more overstable options that will be more reliable and still require less effort. As for the glide, throw it on a low (chest high) frozen rope, and you'll see it catch the wind and just keep going. That's where it really shows its glide. When you give it some considerable height, it doesn't really get the chance to show it off.
I take that back...a good, high anhyzer you'll see it glide out pretty good.