I've used this for over a year now as my first in-ear system. I play bass and sing backing vocals in a couple of bands.
The earphones was replaced immediately, I'm currently using KZ ZS10Pro which have a good bass response. Can be a bit noisy, but it differs between mixers used, so I really can't blame the IEM for it.
Going from floor monitors to in-ear was a big improvement for the onstage experience + it also protects my hearing. An affordable, entry-level system imo..