Some good articles about Bazaar can be read here:
* Part 1 - Version Control : The Future Is Adaptive
* Part 2 - It Takes A Community To Raise Great Software
* Part 3 - Wanted : Rock Solid Version Control
* Part 4 - Version Control: Plug-ins Versus Toolkits
The blogger Ian Clatworthy does work on Bazaar so it obviously has a slant that way, but he makes good points and knows what he is on about. Or maybe I am biased now after being pleasantly surprised by Bazaar...