As a huge fan of Amazing Fantasy 15, I don't mind seeing the origin story adapted again and again. I can understand why some people would have a problem with that, but it honestly was never a problem for me. I enjoyed this movie a lot. It was clever. And it was a nice alternative take on Spidey's origin.
My main problem with it was the misleading promotional materials that made the film out to be more faithful to the comics than the Raimi films. But, as it turned out, the only thing it did mine more accurately than those films was the web shooters. And while a prefer the mechanical web shooters over the organic ones, it's not worth seeing a different adaptation just for that one detail.
I also think that this film is only better than Spider-Man 3. I still think the first two Raimi films are much better. With the Raimi films, it almost feels like the comics come to life, with cheesy dialogue and jokes, as well as the heart of the character.
That said, I do really enjoy this film much more than many others do, even though it was an obvious cash-grab just so that Sony didn't lose the rights to the character. The sequel though? Don't get me started on that. That's a completely different story.