I was having a look at the description of Manjaro spins on the download page. While I find it a very nice and useful page, I feel that the description of KDE Edition may be improved.
I think we could take inspiration from the official motto of KDE Plasma "Simple by default, powerful when needed". We can underline that the environment offered by Plasma is familiar and user-friendly (especially for people coming from Windows, I would possibly add), but at the same time it is highly configurable, to better adapt to the preferences of the user. We could also add a hint to the vast ecosystem of applications for KDE, such as KDE Connect.
At this time, the headline of the KDE section states "Built-in interface to easily access and install themes, widgets, etc. While very user-friendly and certainly flashy, is also quite resource heavy". I find this sentence to be a bit involved. The headline should be a short slogan-like sentence: we should get rid of the "etc" thing for example. Also, I would not say that KDE Plasma is resource-heavy: recent releases are quite well engineered. Plasma is way lighter then e.g. Windows, mac os and other well-known DE's in the Linux world. Obviously XFCE is even lighter than Plasma, but that's one of the main design goals of XFCE.
Maybe the headline could be something like: "Familiar, feature-rich and highly configurable desktop environment"