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Wow, you have to teach me how to get that beautiful render. What settings do you use?

Not to pick on you or anything, so please don't get that idea. I'm just using your post as an example, so I don't look like I'm just spouting this off for no reason.  :-)

But although umbongo6 could tell you the settings used, it wouldn't likely do you much good unless you had the exact scene to use it all on.

The thing about GI is that everything in your scene matters and contributes to the final output, and the same can be said for shaders.
Everything is dependent upon scene size, object size, shaders, shadows, light intensity... and the list goes on.
And the same thing can be said for the shaders themselves, which in one situation might look great, and in another situation absolutely terrible. Again, hugely dependent on all the other scene conditions.

This is why so many people have so much trouble with shaders and now, with GI too. There is no one size fits all, there is no easy way. There are no light sets, backdrops, cameras, shaders, textures, or anything else that will guarantee a perfect scene. Not just Poser, but the same goes for all 3D apps.
And a lot of times, presets won't even get you close to what you want.

The people who do well with it are the people who understand it.
For a lot of Poser users, GI is a whole new world. They don't understand it and that's evidenced through dozens of threads like this one. You have people like BB here and pjz99 and a few others trying to help people understand what it's all about, but it doesn't seem to be widely sinking in, and I still see the same comments over and over again... Poser's GI is broken - this SUX!

And it's gonna get worse before it gets better. Sooner or later, merchants will be making GI light sets and other things "guaranteeing" beautiful and... "realistic"... renders, and people will buy those and encounter more problems they don't understand.

But eventually people will have to really start thinking about things if they want to get good results. With GI, you really can't just expect it to work without either a whole lot of experimenting or knowing ahead of time how to work it into each individual scene.

And it's not by far just Poser either. Even with the mighty Mental Ray, you can have your GI set up perfectly where everything looks great in all parts of your scene, but just move a light slightly of alter a setting or two, and your whole scene goes to hell. But not if you know how to compensate, then you adjust other appropriate settings at the same time and maintain the quality and accuracy.
And unlike real world objects which stay the same and always interact "correctly" with light, surfaces in 3D need to be adjusted constantly to compensate for different lighting conditions, camera angles, and other things.

People using GI in Poser are going to have to learn these things or they will always be fighting it, always be struggling.

Just my .04...