Honestly, when I logged in, I thought there should be more complex UI and features but what it is, it's perfectly does the job. Simple and streight forward.
In my opinion there are some enhancements and updates that make the Instachamp much better such as recognizing the entire phrase instead of single words in the 2-3 words phrase and limitation on sending a reply if it's already sent.

BTW, I like it and look forward to see improvements.