It works quite well. It still has some UI issues and some other issues aswell. I reported a bunch of bugs during my time at ATi and probably daily suggestions on improvement. 
But once you're into it, it's a very useful tool.
Everything you need is here:
http://www.ati.com/developer/sdk/radeonSDK/html/Tools/RenderMonkey.html
But once you're into it, it's a very useful tool.
Everything you need is here:
http://www.ati.com/developer/sdk/radeonSDK/html/Tools/RenderMonkey.html
