Art wise it isn't bad, but you might not like it if you don't like the Clamp style of art with the long limbs and thin look on characters. Action wise it is done well with good fluidity and motion, but some of the scenes were too dark to see clearly what the heck was going on. Personally I like the art, but wish they'd fix up the issue with those "too" dark scenes.
Sound wise I really like the opening song. Catchy. Voice acting isn't bad, but we aren't really introduced to a very complicated or great script here. Some of the time there is lots of silence, which can lead to boredom. The fighting sounds are pretty good though.
Characters, so far are pretty weak. We do not know much about them at all. You would think by this time at least there would be some more info on Saya and her father, but we don't have any of that. It appears that the next episode will explain this to us, but with the way things are going I'm not getting my hopes up.
Enjoyment/Overall, first episode was enjoyable, but with the repetitive nature of the 2nd episode, I got kind of bored of it. Repetitiveness and no story line is what made me drop "Blade" in the first place, I seriously hope they move the story along because I'll probably drop this if they don't. So far I have to give it a 6. It's pretty mediocre, but the art and a few songs save it from being a lot worse.
EDIT:
Well I watched the 3rd episode and it was for the most part the same thing as the previous two, just with a little bit more twist, which imho isn't enough to really merit a higher score. I gotta say I'm quite disappointed. They spend half of the episode with pointless blabber and about the only thing interesting are the fights mainly due to the unique enemies Saya faces.I think from now on I'll just watch the 2nd halves of the show, since the rest imho is pure crap.
EDIT:
I watched the 4th episode today and well, it was pretty much the same thing again, but we got a little bit more info on who exactly Saya is fighting. Even so, the information is pretty vague and simplistic. The pace of the story is horribly slow.
EDIT:
Finally we get to some better action. So we find out more about the covenant. Basically it appears to be some sort of agreement between humans and the monsters, exactly what? We still don't know, but the way this episode 5 was structured it really kept you watching. I don't know how the heck they didn't do this for the past 4 episodes, it would have made a big difference even with the slow plot. The music has really grown on me. I love the opening and ending songs and the eerie song that is transposed into different was throughout the anime is done very well, still the story is really slow, like snail slow. You have to have a lot of patience.
After watching the latest episode it seems that the monsters have pretty much found out who Saya is and have even targeted her friends. It looks like the story is reaching it's middle part. It became a lot more interesting since the last one. Now we see better sequences in the story, still lacking, but better nonetheless.
Final edit: Well after finishing this I gotta say it really comes together at the end, but at the cost of keeping the audience excited for more than half the series. For the first few episodes you are given the run around with Saya doing the same thing (probably a result of the plot) which can cause people to lose their patience and drop this one. As the story progressed near the end you are given hints of what is going and eventually it is all revealed in the last episode. Also the the final episodes are extremely gory so caution for those that don't like to see that (I don't mind). Only downside of the end? You are given a cliffhanger. Whether you like it or not is up to you. I think if it's well done, it's ok. I give it a 7 overall.
