Defraggler: A neat and easy-to-use defragmentation software

When it comes to disk defragmentation tools, what do you think of? Defrag? Diskeeper? Or... the built-in Windows Disk Defragmenter? The former are indeed powerful, but their size is dinosaur-like, and since they are commercial software, the price is not something average users can afford. And perhaps... the results and speed of defragmentation are not satisfactory.

Now, I would like to recommend a lightweight disk defragmentation software: Piriform Defraggler!