Easy to setup & use, provides good results at first glance without over doing it! No problem solved by this software, so far I found only problems addressed: 1) too many scans (scanning drives/ files is not needed), 2) sometimes takes up CPU cycles when nothing important was running, 3) does it in real time or after some idle period? As an alternative try "Windows Tweaker". The only pro I can think about from now till eternity is auto updates. It keeps checking itself if new update available - no need for user interaction. But no big deal as they could do that well at their own cost. We run large scale data centers which are mostly used during non working hours. So we want our machines to be light weight, have few services and less programs installed but still perform tasks easily (if required). This program helps us keep system clean. It is very user friendly software that can be operated by anyone who has basic computer knowledge. The program does its job effectively without any problems or errors. I don't have anything to say about it because there isn’t much i dislike about this product. If you want a good pc optimisation tool then ASO should be at the top of your list. We are solving our slow loading times issues which was causing us many headaches.