I really like Bear and I exported all my Day One notes into it because I didn't really use Day One like a diary anyway. There are three annoyances I have with Bear that I hope they correct. The line spacing after a header is awkwardly large in all the output formats. It's like they are using the line height of the header instead of the body text. I also wish that the color of headers adjusted as you descend the outline tree. Right now it is hard to visually differentiate between an H1 and H3. This was something Day One did well. Lastly, tags would be far more useful if it showed you existing tags for selection as you type. I find myself frequently double checking that I'm not creating duplicate tags with slight variations.

I love how easy links are to use. I never used links in other markdown apps because I didn't care to learn the format. Bear made it incredibly simple. I also found that I could mix bullets and numbering easily and without it trying to correct my intended list.