Just giving my 2 cents about the service, not affiliated nor sponsored or whatever, just my own opinion.
I used to play a lot a few years ago, always having the top spec rig. But over the years I played less and less (life you know). I ended up reselling all my PC and gaming gear.
Fast forward today, I now have a MacBook Pro, which, even if it is definitely capable of gaming with today's chips, it still can't play games with anti cheats softwares (battlefield, etc).
I tried out of curiosity the free tier, and it was awful, the "60" FPS felt like a powerpoint, with horrible mouse input latency. But maybe I'm a 120hz princess.
After lurking around, I told myself "f-it let's buy a month of the Ultimate plan" and see for real what "120fps" and 100mbps feel like, without much hope.
Well, I spent a lot of time tweaking my wifi router to not have any packet drop or latency spike, and now I'm blown away, I can play some huge titles, start the game in seconds, maxed out the graphics, bitrate and resolution, and it plays great. I still feel like it doesn't quite feel like 120fps and there is some input latency, but it's fine for non-competitive gaming and the picture quality is great too.
I find the ultimate plan quite expensive and there is some marketplaces missing (rockstar games I'm talking about you). I guess I won't buy it each month, but for someone who wants to play from time to time (or someone that doesn't have a spare organ to sell for buying today's computer parts), it's a good service.
Thanks Nvidia