So I've read the first issue of Clean Room, and I have #3-7 or so. But not #2. And I don't want to miss anything important. Would I miss anything important?

I would definitely get it, yes. Lots of books, I try to write like individual chapters that make a greater whole, but each arc of Clean Room is meant to be more like a novel, and there’s important stuff in there. Can you try comixology, maybe?