I'd have to see it again but based on my first viewing I'd rank it not as highly as Nolan's batman movies but above or equal to avengers in a comparison to recent(ish) superhero movies (the batman trilogy and avengers rank, in my opinion as the best sh movies in modern times so to rate superman in the same vicinity is quite a compliment...Er...if anyone cares about my opinion, that is).
I can't believe some of the negative reviews this movie is receiving, but at least audiences seem to be enjoying it thus far. I don't know if it's truelly a modern masterpiece but it's a damn sight better than, say, iron man 3 ( which was ok in an 80s throwback kinda way).
Certain aspects of the plot (which I won't go into here) do seem to have enraged some of the old time fans though, which is kind of amusing.

SPOILERS ahead

SPOILERS ahead

SPOILERS ahead

Don't even think about reading this if you haven't seen the movie yet.

You have been warned!!!

If it's that scene I think, it was completely in character and actually has a precedent. Happened in 1987 during Byrne's era Superman. That scene didn't bother me, and I've been a fan of Superman for over 25 years, having quite a collection of comics about him and a lot of TV material (all the movies and some TV series).. That scene shocked me a little, as I was wondering how he'd resolve this problem, and hadn't thought he'd go the way he went in the end. But my brain was functioning at that time, unlike a lot of the pretentious purists that see the character in black and white and are responsible for the character remaining stale quite a bit over the past few decades... So I came up to the conclusion that it was basically the only possible outcome and that it was completely in character. It helped that I remembered the 1987 comic book passage (which also involved Zod) right away as it happened on screen. 

His reaction afterward was also giving a lot away about his character. Thumbs up to Cavill's acting in that scene. It was brilliant.

Just came back from watching Man of Steel in 3D. It is amazing! I want to see it again.

haven't seen it (yet). But from the trailer I'm just wondering... where the f*** is his underpants??

Under his pants where they belong

If i had to be specific, this is the best reboot CBM i have ever seen. There were a few character inconsistencies here and there, but still it was a hugely enjoyable experience(especially compared to Iron Man 3). The entire thing is nicely poised for the sequel which will surely have Lex Luthor. Heard Snyder will be returning , but it would have been great if Nolan directed that one, given I dont think Snyder will be able to jandle a villain as layered as Luthor

I did, I just wrote Superhero when I meant superman

Mediocre, far too much CG/lens flare/motion blur which makes the fights unwatchable. and the rest is just boilerplate standard superman stuff you see in the cartoons/tv series/previous films.

Really this years big CBM's have been disappointing, here's hoping Wolverine, RIPD, RED 2 and Thor 2 are better.

The only superman movie you should be watching is Man of Steel...the rest our absolute garbage.

Best Dragon Ball Z movie ever made.

Sure wasn't Superman.