Soundbooth Review in Camcorder & Computer Video
I couldn't find the article online, but in the latest issue, Douglas Dixon does a full review of the Soundbooth beta. (It has Adobe Soundbooth listed on the top of the cover if you're looking for the right issue.) If you're a subscriber, or have access to a copy, you can check it out in the June issue. Douglas seemed to really like Soundbooth it, and concluded with
Soundbooth can result in a faster workflow and better-sounding audio for your video productions, from cleaner recorded sound to enhanced sound effects, to nicer background soundtracks.