Offered origianlly at $5 a month it was a promotional thing for sure. Play new technically demanding games on a potato notebook, Founders has been good deal.
In over a year of use the main issue is not Nvidia's server farm performance, or my local ISP, but general traffic jams on the public Internet. When I play for 7 days, at least two of those days will have brief periods (an hour or two) when play is impossible. Check my internet connection, it's running fine at top speed. Check Nvidia's servers status, all green. Without edge servers like Amazon has for Youtube, or Akami provides, GFN is at the mercy of intermittent Internet traffic jams.
Given that the internet is the bottle neck, it is dubious the new tier's performance will fare any better. Still they are offering it to Founders at a bargain rate ($90 for six months) which is worth if it works, if not, they do allow Founders to revert back to the standard service and Founders rate if not satisfied after the 6 months.
"Meet the new Boss, same as the old Boss." - The Who.