Write a detailed review of my VOIP application.

I am currently in the early stages of developing my VOIP (Voice-over-IP) app catered for mainly gaming or just chatting with friends. I have been researching similar applications and implemented features and improved on them whilst creating my own. With the project still in the early stages of development their are bound to be bugs and imperfections and that's where I could do with some help. Within the app I have included a review form and from their I would like you submit a detailed analysis, thoughts and criticism (this can be anything from house style to performance). You don't need to have prior knowledge of VOIP applications to review my app, any criticism is good! Please submit reviews with at least 500 words. I look forward to hearing from you!