I think it's good, but with some caveats that I'll get into below. I definitely wouldn't call the game "average", as there's really nothing else like it in my collection.
You play as space agencies, competing to be the first to do things (such as "successful rocket launch", "man in orbit", "man on moon", etc.). How you go about this is somewhat open-ended; there's a kind of a sandbox feel to the game because all the options are on the table, and the game leaves it to you to figure out how to put it all together.
Most of what you'll be doing in the game is mission planning, which involves some simplified rocket science, as you'll need to crunch numbers to figure out how to defy gravity. You get a player aid that gives you some shorthands to help you add up different rocket thrusts and costs, but this game is nakedly about math to a degree that you'd almost call it "edutainment" (that's caveat #1, though I don't mind it).
What's exciting about the game is that shit goes wrong, despite your best planning - all your components carry a risk of failing and spinning things sideways, complicating the situation and making you improvise to try to quickly resolve your million dollar problems. Having to think on your feet is a nice counterpoint to the meticulous planning you do. But since this involves some punishing randomness, that might turn some people off (caveat #2, but the game has options to reduce risks)
The game can run long (caveat #3), but I think you can play to less points (fewer missions). There is also a co-op mode and a solo mode, but I haven't tried them yet. I think they play mostly the same way, but I forget how the victory condition changes.
The game has some charm in that it's produced by a company that makes crafts and crafting supplies, so the product has a different vibe from the cardboard/minis dichotomy of the BGG/Kickstarter sphere. It's kind of like how Phil Eklund/Sierra Madre Games do their own thing, but this one is a lot more restrained and palatable.