This software is very well maintained, totally reliable, and, well, super flexible. It is not cheap but well worth the money. Mac users might have to get over the somewhat complex interface that is devoid of eye candy but will be rewarded with a rock-solid tool for many situations. I am a Mac user and have been happily creating backups for my home media systems with SFFS for about three years now. I would be hard-pressed to think of a task that this piece of software cannot handle. I have compared and used other solutions but would like to recommend SFFS whole-heartedly.

I've been looking for an app to do scheduled, encrypted backups to my remote FTP server. I wanted something reasonably fast and the ability to do versioning would be nice.

I was about to give up and settle for something that was fast and could encrypt backups (but no versioning) when I finally decided to try SuperFlexible. I confess to having been put off by its appearance - not very "Mac-like." Well, SuperFlexible is VERY flexible and rather impressive in its long list of customizable features. But it wasn't as fast, seemingly, as the app I was starting to settle on. So I wrote the developer and asked about SuperFlexible's ability to copy multiple files in parallel. That was last night. This morning I got a reply (on a weekend, no less) that told me exactly what I needed to do ("specify the number of files to copy in parallel on the Files tab sheet in the profile"). It worked like a charm! Now SuperFast copied my test folder in LESS time than the other app!

It's so fast that I copied a huge folder of folders of files (2.2 GB worth) in less than 2 hours. Much faster than I was expecting. And I don't think I've gotten all the optimizations set yet, either...

I should mention that SuperFlexible is pretty intuitive in its operation. There's even a "wizard" mode which I didn't use since it's pretty easy to use (in "advanced" mode) anyway.

SuperFlexible encrypts using zip files. You specify the password and SuperFlexible does the rest. I tested by using YummyFTP (another great program) to copy back, from the remote, one backed-up file that was zipped. I used Springy to unzip the file. Springy asked for the password, which I gave, and voilà! I had my original, unencrypted file back. Of course SuperFlexible will automatically decrypt files when you fetch them back, but I wanted to do the test without that in case I'm ever stuck without it.

What else? SuperFlexible communicates with remote servers via FTP, SSH, WebDAV, Amazon S3, Google Docs, and Azure (not sure what that is... ;-) There's a LOT more settings for scheduling, masking/filtering of transfers - way more than I can describe here.

Bottom line: I like it!

Note that you need at least version 5.49b for Mac OS Lion, see also the Lion info page on www.superflexible.com/lion.htm. The synchronizer should be updated before upgrading your OS.

Hopefully Macupdate will eliminate the idiotic Ratings system. For example, Janus Madsen rated on 02 Mar 2011 1-star, offering no comment or explanation.

I've had a license for a bit over one year, and although I've used other applications for backup and synchronization SFFS is still my main choice. When I've had requests, the developer has been extremely accommodating. Currently I mainly use it to synchronize a 250 GB partition, but I'll add other synchronization tasks in the future. So far it has been very reliable.

Am trialling this and it really is a quality specialised backup product. You can see that these guys are properly putting the effort in for Mac users (don't really care about the GUI when it comes to something as important as backup). Its only a beta so for the moment there are one or two options which prevent me from using it full time (ie, beefed up archiving options) but I am looking forward to seeing how this program develops.

Note that you need at least version 5.49b for Mac OS Lion, see also the Lion info page on www.superflexible.com/lion.htm. The synchronizer should be updated before upgrading your OS.