Hey I don't know if this is just me, but there is something I don't like about the minus chrome extension compared to the imgur one.
When I upload something to the imgur one, I'm able to click on the imgur icon next to the address bar and it opens up a page that shows all of my quick uploads. But when I upload something quickly to minus using the extension, and then click the minus extension, it shows everything in a separate folder when I'd rather have them all up on a page and organize them instantly. I guess I mean all my quick uploads show up in one folder, and that one folder is completely displayed when I click the icon, like in the imgur one. I'd probably use that and only that if it were done that way. But as of now I just use it for gifs that won't fit on imgur.