Only got them a week or so ago for my home gym and so far they are great for the money.
It can be difficult to decide which of these "no name" brands are worth purchasing as many have falsified positive reviews through the seller offering discounts and freebies for positive feedback - but so far I would consider these legit.
They fit and feel very good, the feel in my ears is as good as my long lost $$$ Bose sports headphones and the cord and controls are not intrusive at all and easy to use whilst working out, I don't run with music but I would expect these to be great for that purpose. Paring with my phone was flawless. Battery life is exceptional and as advertised.
The sound is more than adequate for working out, the bass is there but not as deep as it should be but for $40 Bluetooth headphones my expectations are met, and maybe slightly exceeded.