My first experience with it has both good and bad points.
The Good
- I didn't have to babysit the thing
- You can use a folder on an external hard drive instead of a painfully slow serial cable
- The wizard compresses the data
The Bad
- The total amount of time was probably the same. Perhaps because the user had 70 GB of data
- All that compression takes time. I'd prefer a performance-increasing option to copy the data without compression. I had plenty of space on the HD.
- There's no option to turn off copying of applications. I didn't want to clutter up the new system with applications the user didn't actually need anymore. The user was in the Administrators group on the old system, but not on the new one. So, the wizard failed on copying a bunch of items to Program Files.
- Instead of just restoring the data from the folder I specified, it copied everything from the external hard drive onto the target system! I know I selected the folder containing the old system's image. So it ended up copying about 300 GB of data that had nothing to do with the user's original system (software installers, backups from other systems, etc.)