I found the Ultimate Ears are easier to condition to get the son behind the ear and attach the back of the head. This position has more merit to completely remove parasitic noise not transmitted when the son rubbing against clothing for example.
The external noise is well soundproofed, and I find very decent sound quality (it can be a small notch below compared to Shure on bass)
Concerning the strength I would see the use (2 to 3 H per day on average) but they view the more solid.
For now, therefore, I recommend this product.