Yeah, as said before - so long as the consumer knows what they are getting into.
That said:
- I think reviewing "early access" games is batshit retarded. You review a product not "how it is made so far". If I sit down to draw a picture I often get "What are you drawing?" and when I respond I often get "It doesn't look like a _______" in return. Well, dumbass, you don't see what I see in my head so it isn't going to look like one considering I have been drawing for 2 minutes. Reviewing something before it is done is just a pure waste of time.
- I don't like that when Early Access games happen, by the time the game is released a lot of the community is sick of the game which ends up hurting the launch of the game. I don't like doing the Early Access thing and will pay full dollar to support indie devs but when I do everyone is like "That game is so last year" when it JUST released today. "Ugh can we please stop talking about that game, I am sick of it"... It just came out...
- I don't like that offering critique of Early Access games is often met with "It isn't done yet, you can't fault them for it". By offering critique people are doing their part in early access by helping guide the game in development by throwing ideas and criticism (aka feedback) out from the community to try and help improve the game. (feedback is not limited to bug reports and ideas to add into the game) If those criticisms are met with defensive fanboyism trying to "white knight" for the devs, then the only reason to buy Early Access is to get a discount and support the devs less. Any dev who can't handle that type of criticism shouldn't be doing an early access game.
- I don't like the idea of early access being "on sale" considering early access is supposed to be a discount price as it is to help fund the game. If someone can't pay the $10 or $15 bucks for early access I have a hard time taking them serious when they want to claim they "helped" the indie dev. Additionally, by putting it on sale, you are treating the development itself as a product - which it isn't.
I personally think the communities around most Early Access games don't realize what they are getting into. Most games forums read like a forum like the escapist. They tend to bog the forums down with tons of needless threads that offer nothing to the game itself for the devs to have to sift through thus making it a chore to actually be involved with those that want to contribute. I don't have a problem with Early Access but I see many problems with the communities that spring up around them.