First reaction: unexpected delight.
Second reaction: impatience.
Current reaction: tempered optimism.
The first episode was delightful, with great characterization and an intriguing alien society (with overtones of Greek mythology). Then they just HAD to introduce the space bugs. Why can't humanity ever just nuke them? Never makes any sense to me. We send off our vastly outnumbered titan suits or atmospheric-shaped fighters, or drone fields... fire our super lasers... but it's never enough, and nobody ever thinks to just lay a minefield of nukes. Nope. So many animes, and always the same space bugs, always the same hopeless battles.
The characterization and society keep me interested... for now. I also like how the show makes certain to establish the scale of the battles every now and then, so they retain at least a little meaning.
Pretty much what I though of the first few episodes. It does drag on towards the middle though, but all and all it's a really fun show. I to loved the Greek mythology themes, hell most of the characters are based of off the story of Hercules and his 12 labors.