The Gamera one is a bit of an odd experience – the animation for the monster stuff looks good, the animation for the non-monster stuff very much does not. I wasn't expecting a ton from it, and it is pretty standard fare, but I did end up liking it more than I expected to (pretty decent human cast of characters too, despite how rough the animation is on them).
Not the big grand return I was expecting from Gamera, but not a bad experience by any means. Many steps above Godzilla's anime trilogy, but not nearly as good as Singular Point.