Pros -Google's voice recognition capabilities beat Siri, no contest.
Cons -Navigation is confusing, at first.
Summary I've been using Google Search as a Siri stand-in, basically since day one. For some reason, Siri just does not like my voice. I usually have to enunciate a word or phrase 2-4 times before Siri gets it right. I rarely have to re-enunciate at all using Google Search. Search results are returned much faster with the new update. The only complaint I have is that the navigation is a little confusing at first--it took entirely too long to figure out that, to do a new search, you have to hit the up/down arrow in the top right corner.
"No Contest!"on by rbhoopes
Pros Blows away Siri on seed and accuracy plus gives direct spoken results versus Siri that gives nothing but option on screen.
Cons No integration with ios itself like Siri but obviously Apple isn't going to allow that anyway.
Summary Best voice search app I have ever seen!