Except in my experience in an organisation forced to transition from Lync to Skype for Business, Lync always worked fairly well (although we only used chat and

Except in my experience in an organisation forced to transition from Lync to Skype for Business, Lync always worked fairly well (although we only used chat and voice calls), and Skype for Business was wobbly and unreliable. Even though they were theoretically the same product, somewhere in the rebranding they managed to mess up the network behaviour too. Skype used to be pretty solid, years ago. These days it's just dodgy as heck and moving Lync to be Skype-branded was one of the more baffling decisions I've seen from Microsoft marketing, because none of us thought Skype had any pedigree worth trying to exploit anymore.