JLA Year One was a mixed bag. I mainly read this for Black Canary and as a super fan this book didn't have much to offer on that front. From making the og Black Canary a cheater for some reason (justice for Dinah and Larry) to to Dinah's incredibly strange and off putting crush on Barry Allen  and school girl naive, the book didn't didn't characterize either Dinah in a way I appreciated. 

As a story about the forming of the JLA however Year One it was a solid outing. Waid established the team dynamics fairly well and did characters like the Flash, Martian Manhunter and (surprisingly enough) Aquaman justice. I especially appreciated the choice to put Batman and Superman off the the side for this adventure to let less prominent heros shine. 

I also loved the cameos from other DC super teams like the Blackhawks, Doom Patrol and JSA. It felt like a genuine passing on of the torch and established the JLA as the premiere superhero team in the universe for a reason

I would say most people would probably really like JLA Year One. Unfortunately I'm very particular about Black Canary so this one was a minor disappointment. One day I'll find a Mark Waid bokk I like without asterisks.