I'm a well read grad student who's bluntly honest about all things, although I try to be most honest about myself.
This isn't issue one; it's Rebirth #1. The difference is that one will start of the first story arc, and this is a look back at Kate Kane's past, and what made her who she is, as an introduction to the character - I assume more for new readers like me than anything else - so that they can go into issue one knowing who Kane is and what she does.
That being said, this wasn't as interesting to me as a I suspect the storylines in the series will be, but I didn't know that much about Kane, and so getting this full background was fulfilling. I did feel it was a little too straightforward: and then this happened, and then she responded this way, to be really interesting. Then again, I adore this author and I feel like I"ve seen stronger work for her.
A decent background on this character and entertaining enough to rate four stars.