And and, finally finally, do you folks do colonization? If so, what advice do you have for that?
i love the colony mechanics and i like having my own pocket of space but my protip: don't feel you need to be in a rush to do this. for one, it's a big investment: 1000 crew, 300 supplies (i cant remember the exact amount), 200 heavy machinery. upgrading the constructions on your new colony are also very pricey, tens of thousands of credits for basic ones and upgrades get more and more expensive as you climb their trees.
while you grind the capital and resources you'll need, you also should invest in all the skills that help colonies, such as industrial planning and planetary operations. get both and max them out. fleet logistics also helps.
number two: build a very strong fleet. you should, at minimum, have a solid cruiser ship as your flagship and a fair fleet of similar ships. as the new kid on the block, factions will raid you as you start taking more market space for your goods and these fleets will not hold back. pirates will also see your fledgling colonies and attempt to raid them, so you'll need to be ready to rock from week one.
number three: take the time and explore as much of the map as you can. don't fall for the first low hazard planet you see, you can find your garden of gaia with some searching. take into account the whole solar system it's in; is there any higher hazard planets with exploitable resources? what about a lesser planet but it has ruins? also is there stable locations for buoy placement? i personally don't like to spread my colonies out too much but some locations are just too valuable to let slide, but i leave those for later. the ai cannot colonize at this stage of the game, so theres no danger.
oh, also, after you get your defenses up enough to defend from raids, go ahead and use open ports. it will supercharge your colony but invites more raids and !fun! things that happen to colonies.