Shipping and seller: I got this last week. Shipping was fast and buying this from this website is the best deal you can find for this product.
Sound quality: these bluetooth has 4 presets to choose from, I love more imphasis on the bass, and they have that option and it best suits my taste. Remember this is bluetooth, so you can't really compare it to how the details are in the wired earphones, but this will not let you down, Atleast for me. I had to use my miles Davis tribute earphones and it delivers enjoyable listening experience.
iPhone 4 pairing: that's was quick! All I have to do is turn the Bluetooth on my iPhone first and then the HS3000, and it connects right away. Make sure there is no other devise that can interfere with the pairing process, such as another device with Bluetooth set to connect. I'm sure this will work with most of the Bluetooth enabled cellphones/smartphones.
Conclusion: my experience with this product is " very satisfied" considering the price I've got this. I can listen to music and answer calls with a press, not worry about cable. Watch movies and can move my phone anywhere I like to have the best view. Sound quality is the best. Battery life is what it says it is. Buttons can be a pain in the ass to locate, but audio quality is all that matters to me most. I will encourage you guys to try this out. iPhones or Samsung, try these, you won't be sorry. I just wish all4cellular.com will sell these in white and green or pink, that I can buy one for my wife. Enjoy your listening!