My experience — the software backed up my 80 GB (actually available 74.52 GB) containing 42 GB of data (204,483 files) in I hour and 15 minutes, a time comparable to other products I have reviewed for macC. Hurray, it passed the ultimate test of the backup software. My backup booted when I selected it as my startup disk. If you can’t boot it up as a startup disk, the backup is less flexible. Nevertheless, you can indeed recover you user files from it. Buy it and switch — I did. Do it now, not yesterday.
(Via MacCompanion: Thanks, anonymous reviewer!)