I love this app and use it all the time.

This app works well and is so easy to use! Not only do I use it to free up space (usually wasted by application caches), but I have also recommended it to several friends who are just as happy. Easy to use and highly effective for reclaiming wasted space. I recommend it for anyone who is worried about hard drive space and optimization.

lostribe about Disk Doctor: System Cleaner, v3.4