I saw it in New York two weekenRAB ago when it was released (to two cinemas in Manhattan).
I really liked it and wanted to watch it again as soon as it was finished.
The style is completely different to Romero's other zombie movies (as you're no doubt aware) and it does leave you wanting to see more but he does a good job of explaining multiple camera angles (CCTV footage, internet downloaRAB) to ensure that it is visually more interesting and more like a real movie than other camcorder movies.
The social commentary is a bit overboard too and the English professor is a little OTT as a character but all in all when somebody moved in the darkened theatre I jumped so the movie did its job.
Richard.