I stumbled across the NGO drivers when I read a review comparing the different modified driver sets to the stock ATI set (unfortunately I don't have a link nor remember the review site). Until that review I had never even heard of the NGO modified drivers! The reviewer stated there was only 1 set of drivers that didn't crash once for the entire week of testing - the NGOs. That's right, according to the reports NGO's drivers are more stable than those from ATI itself!!!
"That's nice - they're stable" I thought. Then I went on to read the benchmarks. Well I'll be buggered - they also happened to win the majority of the benchmarks.
"Well that's nice, they're stable AND fast, but what do they look like?" I thought. So I clicked on the IQ link.
"Well I'll be buggered again" (couldn't sit down for a week after that
) In the IQ section they just edged out Omega for the title of best image quality.
I had to try the NGO drivers after reading that review, and they were every bit as good as described. Various games that were showing the odd signs of stutter on my system with the stock ATI drivers automatically ran as smooth as silk with the new NGOs. And I'm talking about noticeable difference to the human eye, not the sort of difference that only synthetic benchmarks can ascertain.
So to finally answer your question as to what sort of advantages you can expect to gain when using NGO drivers, I'll suggest that you will obtain noticeably superior speed, stability and image quality over any other driver set. Other than that of course, not much
presentation /info of the driver? 
