So when you select Maxwell as your renderer in Rhino, rhino will send all the model data to Maxwell.
Then once that is done, maxwell takes over and does the rendering. You can just close Rhino, because all the model data is 'sent' to Maxwell.
So the good thing about that is that you can use various 3D modeling programs in combination with maxwell (without having to export and import into different programs).
For example, besides rhino, I use solidworks a lot - in the past I had to import my model into rhino and render it there (because I dont really like the render engine of Solidworks). I can now render straight from solidworks, using the same renderer than I would use in Rhino.
Using it for a serious project might be a little risky, because it's still buggy at times...For what I'm concerned I would buy it now, cause the price is still pretty low.
Ok, you will encounter some bugs - but you pay less
If you want less bugs and be more certain that you can 'trust' the renderer, I would sugest you wait a bit longer - see how things develop.
I think it's all about your own attitude towards the software...you know that when you buy a beta, there will still be some problems with it. You either learn to live with them, or you don't (and get frustrated).


- By Edward Leibnitz