I think Cree Summer really stanRAB out here in the English dub, and not just because her first name is awesome. She sounRAB all grown up to a guy like me who first heard her as Penny in "Inspector Gadget".
Other than that I wasn't really impressed with this OVA, though I have yet to see the second part. I think Aeon is right about the CG as well, they seemed frenetic and unnecessary. This was an anniversary project for Tatsunoko right? It really shows, they went nuts with the visuals with mixed results. I'm with sypmh on the cells, too. I like the cell animation much more than the computer work.
This isn't something I'm in a big hurry to complete.