I got these for my (picky) son as a gift and he loves them. Without provocation, he's mentioned several times how nice they are! The sound quality is good and they are comfortable. They've survived just fine since Christmas. So far, so good.
Hubby and I each have two pair of the "B" brand headphones. The Noise canceling for travel and the ear buds for sport and such. Though I wouldn't say these are as good as them, they are most definitely an excellent substitute if you can't afford the others. We bought a pair of these for our six year old grandson. He's used the "B" Noise Canceling headphones when traveling via automobile so he can listen to his videos without being disturbed by the radio and our talking, so he knows good quality sound. Yesterday when he was using the Able Planet S1500 Sound Isolation Stereo Headphones here at home, he came to me all excited saying "Grammy, I LOVE these new headphones you got me. It sounds like I'm IN THE SAME ROOM as the music!" So, yes, I highly recommend these headphones. and so does our awesome Grandson.
The sound is good and clear and they fit comfortably in the ear. Not sure how the sound isolation works yet, as I have not taken them anywhere particularly noisy, but these headphones are a great value. Perfect for physical activities and hardly notice that they are even there!
I was looking for something to take on plane that would help with noise without going over the ear. I know these won't be as effective as Bose over the ear, but for the price and comfort of in ear they are an excellent option. They feel very good in my ear, and provide an immersive listening experience. I will update review after I've taken them in flight.