Having found CCleaner so useful, I've been watching and using Defraggler for several months now. The version previous to this, with the new algorithm, was brilliant - so much faster than before.
That's what people want! Fast defragging with simple UI.
Two tabs - why? The first tab has a huge amount of empty space even on 1024x768, and the second tab has no obvious functions (took me a while to work out the right-click thing).
Why the pie-chart? Takes up room (though it could still fit in a one-tab view maybe). It says at the top the percentage of the drive that is filled, we don't need to be told twice imo.
The Defrag function on the first tab is painfully slow. I have no idea what is going on either.
Right-clicking and defragging checked files on the second tab is more like normal speed. However I can't scroll the list anymore!
I know people can say "you just don't like change", but I seriously cannot see any advantages this all brings, unless the pie chart taken from My Computer Properties count. It's become less function and more confusing.
All in all, this latest release seems to be very unthought-out. I just hope the developers read all these comments and realise that this so-called Release Candidate is a backward-step, which is sooo disappointing after so any leap forwards. I really hope RC2 fixes some of these mistakes.