Genuinely, no I didn't but it is about 2 years since I used GHD's and about 2 years since I got GHS's so the specs may have changed on each.
I have the cheaper pair from the GHS site. I suppose I was put off GHD's because the owner of the pair I used a few times sent them back 3 times in all because of faults. It was probably just bad luck?
I think there's something to be said for hair type too maybe? Don't want to contradict Janh at all! GHS's suit my hair whereas her DD's seem to have had better luck with GHD's