I didn't back this KS campaign but my semi-regular boardgames opponent recently received his KickStarter pledge for GKR and we have managed to squeeze in two games. Not bad (definitely over-produced, but that's nothing new for KickStarter) but it had a few inconsistencies in gameplay (ones around the way that orbital bombardments work - and are different prices for different factions - spring most readily to mind) that made me thing that more playtesting should have been done. Should also say that the KS-exclusive cards with the reflective metallic effects were simply horrid to the point they were difficult to read.
Not sure how it'd play with more than two, I rather suspect that alliances would be fluid but once a front runner emerge they would be targeted though that would depend on the players. Overall, not bad but not one I regret electing not to back.
By the sheerest dint of coincidence I happened to be in beautiful (and windy) Wellington last month when the Fish family took a road trip and we visited Weta Workshop (well worth it next time you’re in the neighbourhood, by the way). The chap running the tour mentioned their expansion into gaming and said that the intention it there to continue to produce games with the next cab off the rank being a boardgame themed around the South African film District 9. Should be interesting to see what Weta Workshop cook up with that one. The Weat giftshop was also packed with GKR merchandise; I resisted (very slight) temptation.