Excellent!
Be sure to try the latest 12.78 version also, this version is a major new upgrade to DoubleSpace 2 with many exciting new features:
Folder Exclusions: Fairly self-explanatory. Some folders (like OneDrive and Google Drive) simply seemed to require this. The installer comes with a built-in list of recommended exclusions. You can also exclude any custom folder you like, this is recommended if it contains files that are frequently updated (since these will waste space both inside your WIM and on-disk). Any excluded folders are automatically processed using DriveSpace (NTFS compression), which is very safe to use on these folders (and recompresses updated files transparently, although at a worse ratio than WIMBoot) – so you know you are completely maximizing your free space.
Clone Operations: You can now use DoubleSpace to actually create and restore system images. You can even restore a system image uncompressed, if that is your intention. This makes it very easy to move from PC to PC with all your apps, data, and settings intact.
Decompression Operations: You can now uncompress any existing disk (as long as you have enough storage available). When uncompressing, you can even use a past Undo Disk to revert your PC to that state in its entirety as well; or decompress your latest live running system.
Redesigned UI: Message boxes are now more clear; previously hidden user interface elements are accessible; new menu item entries are available for cloning and decompression. Everything remains one-click as before.
Very Large File Support: Files larger than 4 GB are unsupported by WIMBoot, and these files just end up wasting space inside your WIM file (despite many of them being compressible). DoubleSpace now keeps them outside of your WIM, and it again runs DriveSpace on these files to ensure you are getting as much free space as possible on your system.
For more details, please see the recently updated "11 Reasons to use DoubleSpace" page:
http://www.zipmagic.co/doublespace.html