Well done on a fantastic plugin!!! You saved me hours of work and headache.
My biggest obstacle was updating my database :
My ISP only allows a 10MB file to be uploaded to phpmyadmin which was a problem as my backed up database was 40MB. No problems retoring the database with xcloner.
The 10MB restriction also limited me downloading the database, updating all records pointing to my old domain, then uploading the database again. For this process I used http://sewmyheadon.com/2009/mysql-search-replace-tool/
I also had to tweak the wp-config.php and update define( 'DOMAIN_CURRENT_SITE', 'mynewsite.com' ); to point to my new site.
Once again well done on a great plugin.