Although I do prefer look and feel of the GNOME and most of the software I use is GTK, I use Plasma as well. The main issue I personally have with GNOME is it's dependency on 3rd-party extensions. For start, it's missing clipboard manager and notification tray that you get with Plasma out of the box (as well with other DEs and OSes). You want the dock? Again, you need the extension. Then you upgrade and at least one of the extensions is lagging behind.