The Generators seem to be released out of order when you look at the power and simplicity provided. I would suggest this release order for launch: Solid state, Scatter Reactor, Null wave, and then Split reactor. This feels like the natural progression with the power slots they provide and their ease of use. I have yet to unlock all of the components in the game, but I feel like this is the best order to release them to teach players how your grid system works and each step feels like an upgrade.
A simple generator planning room would go a long way to making the game more fun. I can technically do this by just loading up an easy mission and abandoning it but this feels clunky. If I could plan out my builds and power layout at the station this would make my experience a lot better.
Once last thing, The 4 generators unlocked for me very early in the game, If you could stagger those out on release, I believe it would go a long way towards improving the player experience.