Even with the slight problems that i have i still love it.
When i log in the back-end it sends me back to the front-page and i have to fill in the key again than it goes straight to the back-end, aside from that I LOVE IT :D
That issue is described in the extension description and is caused by a Joomla 1.5 bug (you'll find the issue numbers in the description as well). It does not occur in Joomla 1.6. When the Joomla core developers implement one of the submitted fixes, this issue will go away.
I'm sorry you experienced this issue, but it's not caused by the plugin.