So after reading #24, I think there are couple things this book is doing right.
First,the weekly format is great. It's great for people like me who aren't engrossed in the story because it's there every week. So it's kind of like it's constantly on my mind because it's constantly there to read. I do not like the book, but because of this I think it's holding my interest more than if it were monthly.
That said, I'm not paying for it, so I would imagine people who are don't think the format is great if they had to spend $16 a month on this book alone.
The other thing is the design of Spider-Man with the Venom symboite is really, really cool. And Doc Ock Spidey uses him in cool ways, mimicking the Octopus arms.