A little tip to get your upgrades moving along. Pick a shitty gun, find an upgrade you can put on it, do it, then take it off. This will count for 2 upgrades. Do it as many times as you have resources. You can also buy resources in the shop just outside the spaceport if you are missing the odd thing.
I've ignored the jet pack upgrades so far though I have added extra oxygen. I'm just farming resources on the planets, wiping out pirates in the unexplored areas and aiming for base building upgrades. The idea is to get a mining facility going and get loads of cash. Oh yes. Then I'll buy a better ship, upgrade it and then explore.
10 hours of gameplay in and I'm having fun. Instillations are a bit samey, either good people who ask you do go collect something or full of badies. Whatever you do, don't open any door with a living creature behind it. Got hammered by a level 46 critter. One hit. Boom.
It's not No Mans Sky, and I do miss actually taking off, landing etc etc but it feels more together somehow.