Coworker Novels

I have a coworker who is writing a science fiction novel, and he has finished his first or second round of edits and passed along his novel to readers.  I volunteered to be one of his readers, and I am ridiculously honored to be one.  I’ve never known anyone who wrote an actual novel before, so I look upon the draft sitting in my house with a great deal of awe.  I know he’s a tad concerned because I’m not a huge science fiction reader, but as I told him, I’ll read anything, so hopefully my input will help him. I truly a honored.