Well. I didn't want to give my opinion on "Solar Starfire" until someone who knows both versions spoke up.
I am currently trying to start a campaign. Initially, I wanted to run it for myself and one other player. However, after an initial encounter with the rules... we will be running one race together.
Initially, Starfire charmed me with its simplicity of rules allowing to play quite big battles in a relatively fast way. Without losing the flavor of such a space encounter. And I was hoping for something similar in terms of the campaign.
So, about the rules.
It seems that every rule has its exception which you need to have in your head.
Some of the rules seem unnecessarily elaborate, killing the simplicity of being able to lead a large star empire.
Some of the mechanics are poorly explained, despite plenty of examples at the end of the manual.
There is no index of terms!!!
And I wouldn't even mind the complexity of the rules if you could easily search for information on a given topic. Unfortunately, they are sometimes scattered all over the manual. Sometimes they are not in the place where you would expect them to be.
So the overall impression is that this is a draft for a computer game, there are too many things to keep track of.
However, overall I really like the idea. So my approach will be to simplify the rules that we will use. I'm still really, really into it...
That's why I asked about comparing the complexity of the campaign rules from version 3 and version 6.
PS. I'll get back to you after the first game