Question is how many "Serious" Early Access games are out there?
Have to admit my ignorance here since I've only really gone through this process with D:OS.
I did hear some other negative comments on games which went through KS/SEA and release which were negative. Does anyone have any positive examples?
How is that important? We talk about Larian here and they've already proven with D:OS that Early Access can be used in a reasonable way. I think that "established" studios with some reputation and experience how to handle a game development process are much more reliable here of course.
You have to look at it like that: is it a game you would normally preorder? If no, don't buy into Early Access, just ignore it until release. If yes, there is no reason not to buy into Early Access.