I think it's totally worth trying this mod, especially if you like Starfield (and older proper Star Wars, obvioulsy). Call me odd but I genuinely like the vibe, look and feel of Starfield and its visuals, despite the 'game' side limitations we all know about.
The mod is quite easy to install but as mentioned it will take about 10 hours to download from scratch if you've never installed it before, on a non-premium Nexus account which is limited to about 25Mbps.
It's pretty punishing to run though, especially on the CPU. Starfield is the same in some city locations, but this is quite a bit worse. I have a very solid rig too (highly tuned 9700x and fast DDR5 and a 5090) and it's tough going at times.
I was testing tweaking my CPU (PBO, undervolting etc) last week in the Coruscant Imperial City area as this is really tough so I was using it as a benchmark test, and as I ran various benchmarks I can categorically say the latest update 8.6.1 has actually made performance worse! About 10-15% lower FPS and more stutters in the same locations I was benchmarking. This is odd as the latest update was supposed to improve things.
Anyway, hope that gets fixed. Turning on frame gen helps a ton though, and makes it very smooth, even though the mod website says not to use frame gen or DLSS. No idea why, they work great!
I've also started tweaking stuff and modding myself further. Managed to get RENODX HDR working now which is a huge bonus.
Update: v8.6.2 just released....No change to performance, same as 8.6.1. v8.5.0 was a lot better.