Adding a new note is easy. Type in a title and optionally your note. Instead I prefer snapping a photo of something and adding it and perhaps recording an audio message as well so I don't need to type too much.  The created notes are visible on the main notes view as seen below. Clicking on the text, speaker or image icons opens up the note view.

The note view shows the note data including the photo and audio recording if any. Clicking on the speaker icon plays back the audio and clicking on the image thumbnail displays the full sized image in your phone's photo viewer.

The notes are listed in a scrollable view. Tapping on the note text or icons opens up the note view.