Where do I start with the problems using this plugin?
First of all, after activating it, I ended up just on a page with PHP errors. I was still able to get back to my admin dashboard (I was envisioning having to hack my DB to fix this!) but a session related error persisted at the top of my screen.
On the plugins page, the link to the authors site was prefixed by the URL of my own site, so could never work.
Then, in the settings, I added my own YOURLS site and clicked the "Check" button. This seemed to never complete - just staying at "Checking".
In the settings to configure Twitter, one of the critical pieces of information that was required was blank. I clicked on the "Help" link, and ended up on a 404 page on my own site. I noticed that the help link had PHP tags embedded in it...!
I tried visiting the authors site. I figured that since he's such a well respected plugin author (and the author of one of the best books on plugin development) I would AT LEAST be able to find more help on his site. Instead, I found nothing of any use.
At this point, I gave up and uninstalled the pluin.