Have you tried using it without a headset? Echo cancelation practically doesn't exist. It's absolutely behind every other voip implementation I used. Clients are half broken, barely integrated, and lose settings all the time.

We use it at work, and 95% of users have issues with it.

I have to open, close, then open again the macos client every single day when I start it because my keyboard shortcut doesn't work otherwise.

I don't even mind the horrible UI/UX if it actually worked as expected.