I've used FS for years, and have the Pro license. Overall, it's the most capable, stable, feature-rich screen-cap utility I've found. Especially helpful is the ability to re-open annotated captures to continue to modify annotations.

The utility is continually updated, and the dev seems more responsive than typically is the case with web extensions.

The export functionality to One Note is a big deal for me. I live my work day in One Note.

Complaints? Oh, a couple, but they're not dealbreakers. I wish someone would break the logjam with Microsoft so FS can be made available on Edge. The resolution of my monitor (3000x2000) renders the menu buttons of the FS editor very tiny, and menu text is super small (overall monitor baseline scale is already set to 200%). And I wish it were possible to draw arrows on screen-caps without the text box always automatically coming along for the ride. Better would be the ability to choose the additional markup elements in an additive, not subtractive, way.

And then, a strange behavior: Whenever I select a color (for an arrow, or a box fill, etc.) from the palette, the selection never works on the first click; always only on the second.

Minor things. Overall, FS is a faithful, solid workhorse.