Okay having spent 12+ hours (8 of those hours played yesterday) playing this over the weekend I can easily say that this is one of my contenders for game of the year.
As people have already mentioned the graphics are nothing special, frame rate can be a bit iffy at times and some of the textures are quite low res, but they do the job.
I'm probably quite lucky in away as I've never played this type of game on a PC so not having a top down view doesn't really bother me, but I can see why people would prefer to have one.
Now where this game shines for me is the gameplay and the story. Once I managed to get to grips with the UI and issuing commands combat became a joy. I feel the tactics add a good level of depth to combat and issuing commands to other party members is quite simple once you get used to the UI.
I'm really enjoying the story so far (12% complete). It has that "I'll just play for 15 more minutes but 15 minutes turns in to 2 hours" addictiveness to it.
Pleased to bits that I picked this game up. Can't see me having much time to spare playing this and Demon's Souls in a couple of weeks.
Hope this helps anybody that is still undecided about this game. Also sorry to psikey for not posting my impressions sooner, hope you enjoy the game