Tweakbench has great collection of plugins. They all have a simple layout elegant if you will. They all are easy to use and don’t use to much cpu. The instruments are not for use as a everyday work horse but rather they are really good at a simple task and that applies to the effects also. They can create some off the wall sounds but are straight forward and easy to use. All to often the some of the more original plugins are difficult use and have vague or confusing interfaces but not these. a random button makes them all just a little bit better. They are free to download but if you use them as much as me you probably pay the five bucks and download the bundle.