Is it better than DaVinci Resolve? No—Resolve is free and more powerful. However, Resolve requires a high-end graphics card and weeks of training. Pinnacle Studio 27 Ultimate is for the busy creator who wants to edit a YouTube video or wedding highlight reel on a Tuesday night and render it by bedtime.
You need to stabilize walking footage, color match overcast skies to blue, and mask out reflections in windows. The AI Masking in version 27 allows you to select a window pane, invert the mask, and boost the exterior exposure without blowing out the interior furniture. This is a workflow that previously required After Effects.
Why pay for the "Ultimate" tier over "Plus"? It is all about the bundled external plug-ins. These are not demo versions; they are full licenses.