It amazes me that some companies don't test out their software more before putting it out on the market. Recently we attempted to review PerfectOptimizer. However, we ran into a problem. PerfectOptimizer kept freezing when trying to run it's registry cleaner. We didn't just try it once either. We tried it multiple times.
After this happened, we weren't sure if we should still post a review of PerfectOptimizer or not. However, we ended up deciding to post one anyway and explain our experience with trying it. If this software is going to freeze like this, people should probably know that.
Maybe PerfectOptimizer will see our review and get the hint that they need to fix their software. Until then, stay away from it.