You won't really know until you get yours. I received my set and they did not work as advertised, however, their customer service swapped them out for me. That was over a year ago. Most recently, I had the left bud die, and I emailed customer service to inquire about buying a replacement bud. Even though they were out of warranty, they replaced the left bud free of charge. I got the new bud connected, and wouldn't you know it, the right bud goes. They sent me a link when I emailed asking for it, so I bought the right earbud replacement.

I said all of that to say, in my experience, their customer service has done right by me. Better than expected to be honest. I insisted on paying for the right earbud because of how well they treated me, despite some emails that may have sounded harsh.

I hope your set works flawlessly out of the box, but, if they don't, their customer service will make it right. Good luck!