I was a huge fan of KSP, bought into it back in like ~.8/.9 days before there was anything to actually do, and I loved it. Talked tons of people into playing it and I got a lot of joy out of it. I didn't like the way Squad did things, and the bigger they got the worse things seemed to get, but they still ended up producing a solid, relatively stable game, which made space "fun" in a way not many games could.

Squad threw away the majority of the good will they originally generated (mostly by treating their community, and especially their modders, like crap) but the core concept of KSP is solid enough that even with their questionable behavior it still managed to thrive. I wont be backing this early on, but perhaps when it gets closer to release it'll be easier to judge what kind of product they're going to end up with.