Super cheap sound ... basically no bass response.
My brain got used to it thou and I still use them daily, listing to (mostly speech) podcasts on the (bike) commute.
It's the comfort + durability + awareness + good price + still decent sound quality imo, which makes them worth it to me.
No idea why people need noise-canceling, those (and my drumming headphones) seal pretty well against the outside ... once I put music on I don't hear a thing anymore.
That said ... I use the bone-conducting ones pretty regularly on the bike and while running.
[1] Not really 5 way ... 1x low, 2x mid, 2x high balanced amatures.