The problems I can see
It makes the world a better place! thanks, skype. It is not included many ads and easy to use.
The problems I can see:
On different Android devises and phones push notification is not active. On Sony Xperia 10, I will not see sb text me until on open the Skype app and it usually takes a while to load the app. (would be nice if it could be like Whatsapp that always awake)
In MacBook Pro, we check on many devices. for sharing screen it needs permission almost every time and we have to go to mac setting it quit the skype and open it again.