Yeah, just watched it. It's definitely very different from Spectacular, and that's okay. First and foremost, I LOVE the style, the series looks great! Chi McBride sounded great as Fury.
I really like the cutaways and "silly" moments, I really hated Teen Titans' in-your-face Anime bits because it's like it was desperately trying to sell you on how "ANIMEZ!" it was. USM's wacky moments are more subdued and doesn't try quite as hard, I feel the wackiness fits Spider-man better than Teen Titans as well.
Did anyone catch the Marvel Mashups? HILARIOUS! The first one after USM (80s Hulk) had me in stitches especially since they got Travis Willingham who voiced Hulk in SHS (who was the best character in the show)
I have to hand it to Marvel and Disney, it seems they actually put some effort into their "block" unlike DC Nation.