What do you like best?
Security and stability is very important, so much so that other projects such as Ubuntu rely on Debian to build all its architecture. I recommend it because you do not have to worry about formatting every six months or for any pendrive with viruses, that does not exist in this operating system. I have been using the operating system for years and I have not had any major problems. I have had problems for drivers but thanks to the community I solve them in a short time, if yours is to save money, you can have this operating system as option number three, the first is Linux Mint and the second Ubuntu.
What do you dislike?
I do not like that you need to have medium knowledge to use it, it should be a little more friendly, maybe it is one of the secrets to maintain its high quality, but you should review that detail to gain more users. Another factor is the language, if you do not know the basics of English, you will have to work, although at present, with Google that is not very relevant but I would like to write that detail.
Recommendations to others considering the product
If you are starting a business or project, this operating system can save you a lot of resources, because you do not pay for use licenses, it is one of the biggest attractions you have, you just need to get familiar and ready, you can use a stable and maintained operating system for the global community without paying a dime unless you want to donate to the project.
What business problems are you solving with the product? What benefits have you realized?
The first thing is to rescue files that were lost when a virus fell on my other proprietary operating system. The second, being free is unlimited everything I can use. But best of all, forget about viruses and format, it's amazing how I can use the resources of my PC to the maximum.