Initial response has been great; many more comments than I expected. A discussion thread is currently going on over on the mer.rlproject.com discussion boards. Thanks to everyone who has emailed.
Version 1.0.1 is on the way. This will mainly be a bug-fix release with some user-interface improvements, but if you're using 1.0 you'll definitely want to update. I'm hoping for early next week for releasing it, but we'll see.