I really enjoyed the 3-4 hours I spent with it last night.
My home planet is snowy and cold, but has a lot of variety. Flying around to find points of interest and getting upgrades from the inhabitants. I eventually flew to the space station, made some trades, and went back to discover all the species.
Finally accomplished that, got enough to buy a new ship, flew to the station again to do so. Now I'm on my second planet, and it's a desert full of cacti and flying snake dragons.
It is, first and foremost, an exploration game. And if you know that going in, and you're interested in seeing new vistas and finding new things, you'll have fun with it.