What does the company do well? Ease of use, since it does not require technical background to configure it on a computer, in addition to the availability of a web version (in case you have not yet installed it on the computer / laptop) Almost all have it, and those that do not they can log in through the guest functions.
What does the company not do well? I do not like the idea that you have several tabs open per conversation. It is better that you have a good Internet connection or Skype will freeze.
What do you wish you had known about the company before using? Unfortunately, Skype for Business is an expensive product, where only well-established companies can afford it. I suggest that Microsoft reduce the cost of the subscription so that many people can get their access. Finally, its accessibility with Android devices is questioned. They should make it more compatible and efficient.