In the latest KDE version, I couldn't find a keyboard shortcut for switching desktops, nor a tool for setting one. I looked for the KDE help files and they were missing. There's no office software installed: imagine downloading LibreOffice without broadband! The package management is strange: Gnucash is listed under Office, but not under Finance, and KMyMoney is listed under neither.
The Xfce version has no keyboard shortcuts, not even Alt-F4 or Alt-Tab. This was reported to the developers 2 years ago and nothing has been done. The disk still comes without a pdf viewer. This was reported 1 year ago and nothing has been done. Despite the media codecs being present, the players installed wouldn't play flv or mp3, while mp4 had no sound.
To judge from published reviews, PCLinuxOS was good when it first appeared, but it seems to have gone downhill and only retained its user-base by inertia and loyalty.