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Full user review
"Does the Job and quicker then Intel's version"
When it does an in depth defrag, it does it well, does it in the background.
While as most intensive applications that do maintenance in the background your other applications will take a temporary hit in speed of execution.
As with most other defrag applications when being used it has an effect on other applications running at the time. This defrag though is pretty complete and noticeable speeds up the system. With today's drives being so hugh it is a good idea not to let them get much above 1% to 5% fragmented before defragging.