I have multiple hundreds of hours in KSP(Modded) and I can say I had a blast.
Of course I understand some of the concerns of some users but as a developer myself (not games but...) I already knew the game was far from finished.
I really like the direction the game is going in terms of UI design,I think it's more fiendly to new players.
Also, I was afraid the game would be a slideshow on my pc and it actually runs quite smooth (not very complex vessels yet)
Overall I'd like to congratulate the devs for a great milestone reached and encourage them for the ones that will come up the road
Thanks a lot for the love and effort put on the game