i just purchased the s9-hd and used it all weekend. I had the old s9 for 2 years so i’m hip to the deal with this product – plus i’m a tech. Its really good. better than the old one by a significant amount. My friends say that they can hear me very well in convos, and no more background noise. The voice comes through in both ears now, the s9 was only left ear – so i’m psyched. I AM worried still about the touch controls though and very apt to leave them alone and only use the phone for adjustments. I dont feel like buying another one of these next year. Also I keep it in a plastic bag in my workout bag… i’ll be damned if i get these puppies wet and wreck the unit. so – all my peeps – that’s what i got for ya. It cost me $150 all told, so i’m spreadin the love. Just be careful, I don’t trust it yet but it DOES ROCK.