IGN has what looks like the first review of FEAR online today and they score it a whopping 9.2/10.

You'll always be outnumbered and often outgunned. Thankfully, the environments are somewhat open. Although this does sometimes you to flanking, there is the occasional duct that will allow you to come in from behind (if you're willing to bear the darkness and a potentially heart-stopping encounter). You can also set proximity mines and grenades to protect certain routes. Unless the enemy doesn't use the floor, that is.

Looking good, looking good indeed.