This is a pretty good take on the Godzilla concept. It's altered and more modern than the original, but it has a strong social context (knowing about it ahead of time increased my appreciation of the movie so I recommend reading about it before watching) which makes it feel like it has real depth. It falls into some overused tropes like the very young, very gorgeous, single, young woman in a high ranking position to offset the similarly big-screen handsome, single male hero. It does not, however, become a story of two people falling in love as they single-handedly save the world. There's more to it than that. The changes to Godzilla may bug some long-time fans, but there is purpose behind his design. He looks good and feels dangerous.
Questionable Content: This is pretty tame with mild violence (high body count but on a scale that doesn't show the gory effects of the carnage), mild and infrequent strong language, and no sexuality.
Spiritual Content: The spiritual connotations here are not necessarily overt, but a line explaining Godzilla''s name casts a little bit of light on the undercurrent depending on how much weight you as the viewer choose to give it. Godzilla is called "god incarnate." Does that mean he's literally a god-in-flesh being in the same way Christ is, or does it simply mean that Godzilla's power level is so far above humans' that it's nearly impossible to resist him? I saw it more as the latter, but at least a few people seem to take the former stance. I've read that Godzilla and his ilk are intended to be modern pagan deities that need to be appeased in the proper way lest they be angered and thus wreak havoc on humanity, so that does actually fit with the god-in-flesh interpretation. I've always viewed Godzilla more in line with the Blue Oyster Cult line - he's a force of nature born of human folly, but then I've never been heavily involved with kaiju fandom despite enjoying a good giant monster movie from time to time. So I suppose to some degree the amount of spiritual weight you give any Godzilla movie will depend on your view of the nature of his existence. I think the focus of "Shin Godzilla" is more on the political commentary.
DVD: I watched a friend's DVD and so won't have the opportunity to look through all it has to offer. I thought the presentation was quite good, but I wasn't impressed with the acting in the English dub. The DVD I saw didn't have a lot to offer as far as extras go.
I didn't like "Shin Godzilla" enough that I plan to buy my own DVD; I feel like one viewing is plenty. However, I did appreciate the opportunity to see it and will most likely see part 2 if it gets made.