It has a very large number of bugs.

My favourite one ( still happens ) is having to mute then unmute at the beginning of the conversation otherwise nobody can hear me. It was so common, with people fiddling with their headset, calling again etc that I eventually asked everyone exhibiting audio issues to start with this

Another interesting one is that if you’re not connected properly , you send messages , but never get notified that they never left, and are never notified that you’re not connected.

It’s also a resource hog and will eat your machine for breakfast.

The list goes on and on, it’s very surprising.