Testing an online background noise reducer functionality

What I want to know is that how effective is it when it comes to reducing background noises from audio?

You can record, or upload audio... if you have time, test it out and tell me if it's
denoised audio quality good enough or not.

This is a project that I'm working on, I'm not quite sure if I should move forward with it or not.

[All the noise reduction functionality happens on the device, nothing gets to the server]