I saw the first episode of it as well; there are some subbed versions of it out there on Youtube. It was pretty good, I liked it. It wasn't "OMG AMAZING" either but Dantes character and attitude and the feel of the game came through well. The little girl didn't really bother me but it does seem to be a staple of way too many anime series by either having some older brother/sister character that is annoyed by the little kid and then a brother/sisterly bond forms. AWESOME!......wait.....no that's not awesome!
When the anime hits over here, I hope they get one of the voice actors who played Dante in the series, either DMC 1 or 3 (the voice actor for Dante never said much in DMC two. When he did it wasn't bad either but not enough to gauge his voice for the character.) With the voice actor from DMC1 being preferable since that's the style of Dante they are going for in the anime. There are other anime voice actors who could do Dante well, but the actors who did him in 1 and 3 were good, so I really hope they do that.