All around, easy to use distro based primarily on KDE, although there are other UI available.
Ranked in these QuestionsQuestion Ranking
Pro "Batteries included" philosophy
Main release includes most apps needed by users everyday. Windows users will see a familiar look and feel to the UI. H/W issues practically nonexistent, as most drivers come with the ISO.
Pro Rolling release model
No reinstalling the OS after every major upgrade. Keep your OS updated, and you have the latest version.
Pro Software management and updating made simple through Synaptic
Pro The team is headed by Texstar
One of the best in the business.
Pro Helpful and knowledgeable forums
Many issues can be resolved by just searching the forums. They are really a storehouse of knowledge. If not, expert help is still available.
Con Gaming can be hit or miss
To run some titles, particularly from Steam, some "massaging" is necessary.