It was obvious to me Spidey would be a kid in this incarnation, and its smart and cool.
All the supes are men, having a kid juxtapose them will be awesome. Plus, Spidey is obviously going to try out for the Avengers and fail, like he tried out for FF in the very first issues, and failed cuz he's too much of a kid.
As cool as this all is, still kinda woulda prefered spidey stay in his own movies. This whole overlap, expanded universe stuff handicaps storytelling, just like in the comics. Kills creativity. Iron Man2, Thor 1 and 2, Antman, all these directors confirm this.
It won't be as bad as the comics as there aren't many movies, so its easier to handle, but prefer it if they are having their own cool little adventures, made by unique directors with a vision. Now its all just samey and blah. Still, quite fun I will admit.