I concur on Quiver. I've been using it for months and it picks up nicely where Evernote lacks. I do wish it was a bit better in the usability department, but it's a fine tool. Also, I don't think it's been updated since I bought it.
Quiver is a life saver for me. Markdown, i can use my vim keybindings, the data format is just json, easily taggable and searchable. I save my snippets, observations, commit history, everything in quiver now. It is synced via dropbox as well