Now for a moment of shameless showing off; my best time to complete the game from starting a new game to completign the last mission is just under 2 hours. Can anyone beat that? Course, I have an unfair advantage, I was QA at activision on USM for about 2 months. Played way more USM than should ever be played of one game.
And my views on the game? Overall, a good game. Not great, but good. It's a fun romp, but not something I would stick with for more than an hour or so at a time.
What I liked: A minority I may be, but I actually liked the Spider-man combat. It was a lot of fun seeing whether you could get Ultimate and working on becoming an expert on when to switch attacks. The boss fights in general are very fun, and it's a lot of fun to just blow random things up with cars. Throwing cars with Venom definitly takes some getting used to, but it's quite accurate one your used to it. If you want a challenge, try hitting helicopters with army tanks in "The Great Escape"
What I didn't like so much: Shenanigans got awfully repetitive awfully fast, especially med transport missions. Chase mission are especially annoying with Venom because one mistake can cost you the entire mission ("chase electro" in particular is bad for this) Trick races are obscenly difficult in comparison to the rest of the game. After working about 50 hours a week just playing USM, I still could only get Ultimate on about half of the trick races. And I was one of the best at them!
Final thing: The complaint about tentacle attacks being the most effective attack with Venom is only true when you aren't very good. You can get some awesome combos with Venom when you learn him better. For example, hitting tentacle, then grab, then punch will have Venom tantacle attack, grab the emeny with the tentcale, pull them close and then Venom will power punch them into the ground. Lots of fun!
Oh yes, and buy Gun when it comes out. Great game. Can't say anymore, I've got a bitch of an NDA over me.