I like anime, and the technical art quality (spritework, animation) in BlazBlue is great.
...And yet, it doesn't look good. The character designs range from forgettable to juvenile, and the artstyle is unappealing. "Generic" isn't the right word, I think; rather, it feels very specific -- unfortunately, the specific mind-space it places itself in is that of late night AT-X trash light novel adaptations.
That might seem weirdly particular, but to me, BlazBlue has a completely different look and completely different association than, say, Melty Blood, despite both being sprite-based anime fighters.