and thanx for a very robust plugin, it all works very well.
Except the change wp-content folder option.
I have my site in a domain sub folder ie: domain.com/site.
When I select the option to change the wp-content folder to cool-content then actually change the folder name to cool-content the admin looses privileges.
Also, when I selected the change table prefix from wp_ to abc_ I was also locked out, same message of no privilege. I found a fix for the table prefix issue by looking through the data base and finding any reference to wp_ and changing it to abc_
Great plugin , but I think these two issues may cause others trouble using it.
oh, also for anyone who changes wp-content, your posts may refer to images in the folder wp-content/uploads, so there is a plugin which does a search and replace all posts and pages content, so search and replace wp-content/ with cool-content/ and your posts won't break.