This is my first and only blu-tooth earpiece and I love it. I have talked to people on their far more expensive Plantronics units and I believe that this sounds genuinely superior. I bought it because: 1. I wear glasses and this sits in the ear and not over the ear. 2. Price. It is a quality product at a super cheap price. 3. It received very good reviews. I ordered it from Amazon and also ordered the Jabra Gel Ear buds. It took a bit of trying until I found the perfect fit within the 3 sizes of ear buds that all come in one package, but once I found the right size, I was home free. There is absolutely no way that this will fall out of my ear with the Jabra buds. They fit snuggly like a hearing aid. They are very comfortable and will not fall out. I have never even tried the hook that came with the Samsung. There is absolutely no need for it as long as you use the Jabra Buds. The original earpiece that comes on the Samsung is worthless. I can see why people would complain that it falls out. As far as the sound quality, as long as you have the phone and the Samsung aligned the sound is perfect. Talk at a normal speaking volume. I had a complaint that it sounded like I was speaking in a tunnel, when I first used it, but with practice, you can sound perfectly fine on this. Lastly, it is adorable and I love the blinking blue light.  All I have to do is say "Call so and so." and the Samsung dials it for me. It has total voice recognition. Perhaps that would not be true if my phone did not have voice recognition as well. I am thrilled with this little gem of a gadget. One last thing. If you use the Jabra Ear buds, you will have to remove the ear bud to recharge it and cannot carry it around in the little charger carrying case unless you want to keep removing the ear buds...so I bought a tiny leather coin purse to store it in and it keeps it perfectly safe.