I've been testing out a LOT of note taking apps, both for my use and for my students. When you mentioned Notes Plus, I realized I hadn't tried it, so I bought it and have been testing it out.
There's a lot to like about it--it has an elegant interface, very good handwriting function, you can draw or add simple shapes, and also do voice recording. It has a "zoom" window for handwriting so you can write more precisely and fit more writing on a page. If you've seen other handwriting notes apps, the auto-advance function of this window will seem familiar; if not, you'll soon get the hang of it (writing in the gray area makes the box advance) and it auto returns when it reaches the page margin which is a real convenience.
And you can hand write or draw or type on the same page (and the text box [typing] allows cut and paste).
Plus you can work fullscreen in landscape mode. And have different types of paper for different pages.
It's archive capabilities are very good. You can have multiple notebooks and move pages around and move them to multiple notebooks. And it syncs to DropBox easily and quickly. That's a necessity for me so I can stay in sync and access everything on either my iPad or laptop.
The audio recording is a little clunky, as it's stored as a separate file, not with the note. (Notability sores the recording with the note).
Notes Plus would be a great app for class notes as it's flexible and easy to use and you can keep your notes organized in various ways and back them up and sync the on DropBox. I'd definitely use the app for lengthy meeting or lecture notes.
For my workflow, I'm using Notability for a visual journal. It has a blog like interface where you can insert images or drawings and wrap text and also add a recording. For my classroom teaching notes, I think I'll use NoteTaker HD. It has a VERY robust interface and I can insert photos (take a photo of student work and add notes, etc.) There's a large library of shapes and symbols you just drag onto the page and you can annotate an image or PDF.
