Changing a domain name has always been a white-knuckle exercise for me. In fact, I woke up this morning at 4 a.m. worrying about the one facing me today. It's now 6:49, and I'm all done and back up, thanks to this plug-in.
I used the "belt and suspenders" backup method (did my own manual backups of files and database, then used the plug-in to do the same). The new domain was ready to go, so I just followed the instructions provided with the plug-in for "Change Domain Name" and was done in about ten minutes. I can see this would be valuable for larger-scale migrations.
Thanks for a great plug-in!