Finally got a chance to use mine today (Glass Ghost model). It looks pretty sweet in the water, but it can be a challenge to keep a consistent motion. I got the best results when using a combo of small twitches followed by one big twitch to make it glide off to one side then a short pause. I got 5 on in about 2 hours, but lost a couple (had a pike follow it in too). Thing casts a freakin mile!
For some instruction on how to fish the lure, check out the video on the Rapala site or on you tube.