A definite must try for new users to Linux. It always surprises me that PCLinuxOS languishes lower down in the top 10 rather than sitting up in 2nd or 3rd.
For new and inexperienced users, PCLinuxOS provides the closest experience to what they are probably used to than any of the aforementioned distributions (with the possible exception of Linux Mint).
There is great support and a great monthly magazine and the community is very friendly and supportive.
PCLinuxOS has the KDE, MATE and LXDE desktop environments available and therefore it caters to modern and older computers.
PCLinuxOS has a rolling release model which means that once you install it you will never have to upgrade.