I think it looks great and I watched Prometheus again last night in anticipation...the "back burster" looks terrifying. The landscapes appear incredible.
I dig going back/forward to something that is similar to the original facehugger and appearance to the "Xenomorph." David also looks awesome.
I appreciate Prometheus, this looks like its going to cater to fans a lot more, similar to what Star Wars is doing, which is fine. Give the fans movies that they want.