I'm cautious-vax. I believe vaccines save lives and I've personally experienced pertussis, which I never want my young children to experience. I am also related to someone who is vaccine-injured. So I delay, space, and do one at a time. There are also a few we're skipping altogether. That's the compromise I've come up with, though I respect parents on both sides of the debate because it's not a black-and-white issue.