I liked it a lot. Moreso than SM2 - people may say it was brilliant, but to me it's always just felt like they took too much of a villain-of-the-week approach with Doc Ock. All of SM3's characters felt like they had a much closer tie to Pete.

Granted, (SPOILER)when Pete went all bad dude, it was ridiculous to the point where it was almost embarassing to watch. The dance scene felt somewhat appropriate, but walking down the street etc. was stupid.

Also, it felt a lot like Venom could've been better fleshed out if the whole symbiote sage had been divided across two films. I thought they did plenty to establish Peter's struggle with the symbiote, but it was just way too late in the film before Brock got a hold of it, and it just felt like you didn't get to see nearly enough of him doing his thing.

The special effects were amazing, especially Sandman. I also really liked his part in the story.

I keep wishing they wouldn't continue with a fourth one, because at the end of Spidey 3, they close like the biggest points of continuity between all three films. There's still plenty of characters to explore, but they aren't nearly as important.