Well I must say that I like the renderer and its results.
But you should carefully read about the system requirements, I mean you will need a machine that offers at least 8 GB of Ram. Fryrender is as it comes from Maxwell not the fastest renderer, but it has several advantages that might take your attention. I used it with 3dsmax and much less Ram about half a year ago.
It gives you the possibility to save the images in many different formats, one of them is similar to raw and very nice to be used within the renderer's lightroom for afterwork, another one is that you have the light intensity signed in Watts, creating materials is easy, too.
the embedded lightroom for afterworks is a great advantage and the possibility to render all the needed layers at once but as layers is a fine thing.
I really enjoyed working with fry. One of the nice advantages is that you can render your own materials to see them active in 3d... you can change materials withinin the renderer and so on
if you want to render professional and realistic images you are good with fryrender, but if you need fast rendering and short rendertimes to see the effects - well, then I am not sure... this one is a rederer for the high requirements you abide from a realistic rendering engine for high quality end results.
I could imagine if you use this one in one of those belgian fasttrack pc's you might have quite a fast instrument - I hadn't had the chance to test it out, so this would be nice to know.
hm, I could sell the product huh?