I played the new introduction scenario and must say I love it. Having roughly 800 hours of play I can't really talk from a new player point of view but I liked the progression and how everything is introduced.
I didn't have any crash but I had a few slow downs (like very fluid then 1/10th of second hang, very fluid again), and I agree with the remarks on compilotron : it's either too fast or too dificult to find. When comes the time to evacuate the first base, I was busy picking as much stuff as possible and didn't see where it went, I had to guess it was going to the north east since the enemies where coming from the other side. Maybe a visual hint like a big arrow pointing to it when the current objective is to go and see him ?
I also found a small issue : after clearing the west enemy bases, I extended my ammo delivering belt to add a new line of defensive towers, and when putting electric poles for the inserters, they connected to an invisible thing, probably the (now destroyed) ship generator :
![Image](https://forums.factorio.com/images/ext/8e9c9ddfccb2ce386b6a3a50ee2ebbe7.jpg)