Before i start my Feedback after 12 hours i need to say this: Iam not fluent in english nor is this my mother tongue so i may make extremely gramatically errors and such things. But i think if you think a bit you should probably understand what i want to explain. Thank you, i apreciate your time reading this

Factorio the first Encounter:
I always LOVE logistics. I love beeing the support and i love Transport Tycoon, also Starcraft and Tower Defense. So i saw a Video about Factorio and i thought "What the...?!". I was not amused and thought instantly... "Jeez... another indie-game with pixel graphics... blah" and i ignored it. But then i watched the video anyways because i was into a game and had no chance to stop the Video, so i saw what Factorio was/is!
Factorio the Demo:
I decided first to pirate the game but then i saw there is a Demo. So i gave the Demo a shot and i was amazed! Needless to say that i threw money onto my screen and yelled "Gimme that Game! NOW!".
The first 2 Hours:
I was unsure, i immediantly build up a extreme weird logistics system (but with ease!) and i stood only with 1 science-station because i thought there would no benefit. I should have known better (so a few hours just waiting for science ^^). After i tested a second one the game started for me to be extreme fast.
After the 4th Hour:
I must say that i dont bother with the graphics of games, iam not very picky about such things. I do like fancy graphic but i dont mind playing 8bit-Games too! In fact i grew up. The sound, well i switched it off because this game has the Spirit of "Let it run beside whatever else youre doing!" and so i cant say much about sound/music. The depth of the game, especially the science tree, all the stuff, is very good.
This game takes the Mix of very rare Genre-Mix: Logistics, Tower-Defence, Action and Strategy. I did not saw another game like that one but iam sure there are older games out there that probably does the same like Factorio does. So yeah, this game has probably the same potential to go up to 200 hours + like Kerbal Space Program and Space Engineers! Iam amused how much better Indie-Developer are taking the real Spirit into theyr games! I mean, Modding, bind in the Community and bring out something more fresh than Zombie-Clone-20129381289999 or Minecraft-Clone-99482023333029!
Final conclusion:
Factorio has a great potential because the Developers go with the right Spirit into theyr game! Till to that point, after 12 hours, i also didnt saw any strange bugs and iam not at the end now (way to go to end my first game in another 12 hours of testing). Next Round would probably be more efficient and a LOT faster.
If you like Transport Tycoon, Starcraft, Diablo and Tower Defense, you should give Factorio a try! I think it is worth the money. Thanks!