The problem I have with Pilot2ATC is that voice recognition is really really bad. I`m not a native english speaker and for me it is absolutely impossible to make it work so I have to use copilot and clicking on things I wanna say. I tried SayIntentions and its a mixed bag for IFR flying but at least voice recognition is top notch. I`m also using more and more now FSHud. Voices are a bit better than the free ones from Pilot2ATC and has no voice recognition but its easy to setup and use and works mostly out of the box. It also controlls traffic with varying degrees of succes sometimes is really good and sometimes you get 10 speed restrictions in a row.